<pre><pre>Intermediates of the United States: the Senate races you need to see | News from USA

With US voters preparing to go to the polls on November 6, Democrats see key opportunities, in several states, to win back the majority in the United States Senate and the House of Representatives.

The 435 seats in the House of Representatives will be decided during the mid-term elections, but only 35 of the 100 seats in the Senate are available. The chances of the Democrats in the House of Representatives seem to be much better than in the Senate, where several key races will be an uphill battle for the party.

Each of the 50 states of the United States has two senators in Congress. Senators serve staggered six-year terms, and for bills to become laws, they must pass through both houses of Congress, the Senate and the House of Representatives.

For Democrats, withdrawing the Senate would allow them to block Trump's Supreme Court nominations, disrupt their immigration agenda and efforts to dismantle the Obama-era Affordable Care Act.

But Republicans currently hold a 51-49 majority in the Senate, and Democrats' prospects of winning the majority are slim.

These are some of the careers you should see:

Arizona: Kyrsten Sinema v Martha McSally

Located on the border between the United States and Mexico, Arizona is witnessing a political battle over immigration. The state is home to a large percentage of Latinos, roughly 31 percent of its total population, and Republicans have doubled in support of President Trump's extensive crackdown on immigration.

Republican Jeff Flake announced he would not seek re-election last year, leaving his seat open. For Republicans, the opportunity arose to place a pro-Trump candidate in his place, and for Democrats, the opportunity to take a seat.

Martha McSally won the Republican primary after a heated election, and Republicans hope she can win the open seat in the Senate. But Democratic challenger Kyrsten Sinema led by three points in a recent poll published at Suffolk University and the Republic of Arizona. Given that 11 percent of voters still are not sure how to cast their vote, the race could go in any direction.

Candidates for the United States Senate: Martha McSally debate on Kyrsten Sinema [Matt York/AP Photo]

The prediction website, FiveThirtyEight, says that the race is currently a Democrat, and that Sinema has a 60.1 percent chance of winning.

The Arizona race could have far-reaching consequences for the future of immigration, arms control and medical care, among other key issues in the upcoming midterms.

Texas: Ted Cruz v Beto O & # 39; Rourke

In Texas, a traditionally Republican state, three-time congressman Beto O'Rourke has garnered national attention by challenging incumbent Republican Senator Ted Cruz.

While most polls place Cruz ahead of O & # 39; Rourke by at least three percentage points, according to FiveThirtyEight, a Quinnipiac University poll found that 97 percent of black voters favor O & # 39; Rourke.

Beto O & # 39; Rourke debates Ted Cruz on October 16. [Tom Reel/San Antonio Express-News/AP Photo]

The second most populous state in the country, Texas, has not seen a Democrat win a statewide vote since 1994. But O & # 39; Rourke has outdone Cruz in fundraising for a long time, raising more than $ 24. millions in donations.

And, as in many states, immigration has assumed a central role in their campaigns, with O & # 39; Rourke proclaiming support for a path to citizenship for undocumented immigrants and Cruz reiterating their support for the Trump border wall.

Although Cruz and Trump disagreed during the Republican primary that finally saw the last victory, Cruz has repositioned himself in the Trump camp. And Trump has put his weight behind Cruz, saying on Twitter: "Ted has my total and total support, his opponent is a disaster for Texas."

Nevada: Dean Heller v Jacky Rosen

For Democrats to break the Republican majority in the Senate, they need to win Nevada, where incumbent Republican Sen. Dean Heller faces Democrat Jacky Rosen.

During the 2016 presidential election, Democratic candidate Hillary Clinton overtook Trump in Nevada, where Democrats enjoy 60,000 registered voters more than their Republican counterparts. With a growing Latino population, Rosen hopes to turn Nevada in favor of the Democrats.

Formerly president of her synagogue and first-term congresswoman, Rosen has focused on immigration and health care.

Heller also openly supported the new Supreme Court judge, Brett Kavanaugh, whose confirmation hearings were affected by the controversy over the accusations of sexual assault against the judge, which he denied. At one point he called the controversy a "hiccup".

Rosen accused Heller of ignoring the voices of women in Nevada. Rosen has advocated for abortion rights, stricter gun control measures and the DREAM Act, which would have provided a path to citizenship for undocumented immigrants who came to the United States as children.

FiveThirtyEight, as well as other projection sites, consider this race as a launch.

Tennessee: Marsha Blackburn v Phil Bredesen

Tennessee may be a remote possibility for Democrats, but their potential victory in the strong Republican state is crucial to regaining a majority in the Senate.

With Tennessee winning Trump by 26 points in 2016 and the president enjoying a 54 percent approval rating in the state, Democrats face an uphill battle with former Democrat Gov. Phil Bredesen's bid to fill the vacancy left by Bob. Corker, a Republican Trump critic who recently announced his retirement.

Phil Bredesen debate on Marsha Blackburn on October 10. [Mark Humphrey/AP Photo]

Polls have varied, with some placing Bredesen ahead of Republican nominee Marsha Blackburn for a handful of points, but others putting Blackburn ahead by a wide margin.

For his part, Blackburn has aligned himself with Trump's Republican brand, joining against the Obama-era Affordable Care Act and accusing Bredesen of supporting single-payer health care. As governor, Bredesen introduced cuts in public spending that caused some 200,000 Tennesseans to lose their seats in TennCare, the state Medicaid program.

West Virginia: Joe Manchin v Patrick Morrisey

Although Trump won in West Virginia by 40 points in 2016, Democratic Senator Joe Manchin remains popular in the state and enjoys a 46 percent support rating, according to a recent survey conducted by Gray Television.

Meanwhile, Republican Republican State Attorney Patrick Morrisey received 38 percent in the same poll.

But President Trump, who boasts of having a 62 percent approval rating in West Virginia, has supported Morrisey and held several campaign rallies for the Republican challenger. FiveThirtyEight predicts that Democrats have an 87.5 percent chance of retaining the seat in the Manchin Senate, but an angry victory could ruin the party's hopes of regaining the Senate.

Trying to capitalize on his extensive support in the state, Trump described Morrisey as "spectacular" and turned West Virginia into a battlefield in Kavanaugh's confirmation hearings, even when Manchin became the only Democrat to support the judge.

"We see this horrible, horrible and radical group of Democrats, you see what is happening right now," Trump told thousands of supporters at a recent rally in West Virginia.

"And they are determined to regain power by any means necessary, they see pettiness, they do not care who they hurt, who they have to run over to get power."

Indiana: Joe Donnelly v Mike Braun

US Sen. Joe Donnelly, who faces Republican challenger Mike Braun in Indiana, is considered one of the most vulnerable Democrats in midterm elections.

Indiana is one of five states in which Trump won double figures in 2016, and outside groups have invested more than $ 45 million in races in the state since May, according to local media reports.

A Gravis Marketing survey published last week found that 44 percent of voters support Donnelly, while about 40 percent support Braun.

With Braun accusing his opponent of being part of the establishment of the Democratic Party, Donnelly has tried to become an intruder who often votes with the right of the Republican Party.

"The radical left wants to eliminate ICE," said a recent announcement by Donnelly. "Support to ICE and financing of the border wall of President Trump."

Missouri: Claire McCaskill v Josh Hawley

In Missouri, where Trump won by 19 points two years ago, Sen. Claire McCaskill, 65, has resisted controversial publicity attacks, secret footage as part of a covert right-wing operation and accusations of being a "DC insider." "

His opponent, Josh Hawley, 38, enjoys Trump's backing and has a neck with McCaskill in the polls. The race has turned ugly in recent weeks.

Paid by the right-wing Stars and Stripes Forever PAC, an announcement in favor of Hawley sparked controversy for stating that "Christians, Jews and Muslims" do not "worship the same god."

The announcement concluded: "Vote not for Claire McCaskill and her Democratic agenda, yes for our children."

Earlier this month, the McCaskill campaign revealed that it was infiltrated by the Veritas Project, an extreme right-wing NGO known for attacking liberals and leftists in covert operations.

The videos showed a man questioning the Democrat about his positions in gun control, Trump's plan to build a wall on the US-Mexico border and other hot topics.

FiveThirtyEight puts McCaskill's chances of overtaking Hawley in five out of eight, but in several polls in recent weeks the two are almost tied.

North Dakota: Heidi Heitkamp v Kevin Cramer

In North Dakota, Democratic Sen. Heidi Heitkamp has been losing ground to Republican Congressman Kevin Cramer.

Cramer has criticized Heitkamp's vote against the confirmation of controversial Supreme Court Justice Brett Kavanaugh and his opposition to Trump in a state where the Republican president easily won in 2016.

"Do you vote against Brett Kavanaugh when 64 percent of your constituents want you to vote for Brett Kavanaugh?" Cramer asked rhetorically in a debate last week.

The two have criticized the Obama-era Affordable Care Act, which Cramer wants to reject and Heitkamp endorses, as well as the recent introduction of Trump tariffs on imported Chinese products.

China's response, also billions of dollars in tariffs on US products, hit hard on soy farmers in North Dakota, according to local media reports.

A survey by Strategic Research Associates, conducted between October 12 and 19, found that Cramer led Heitkamp by 16 percentage points. FiveThirtyEight predicts that Cramer has an almost 70 percent chance of toppling Heitkamp.