Live updates: Election Day approaches as voters cast early ballots in races that could determine House and Senate control

The control of the Senate will be determined on Tuesday by which party takes control of the chamber.

Republicans need to pick up just one seat to gain a majority in the Senate, as several candidates are in a dead heat in the polls.

CNBC has a guide to the top Senate races that you can use to keep up with the candidates.

The person is Kevin Breuninger.

A neon voting sign is displayed on a truck during a campaign stop by a senator.

The person is Bob Strong.

According to a study by the nonpartisan OpenSecrets, the upcoming elections will be the most expensive in history.

The amount of money that has been spent on the state and federal level in the next two years is unprecedented. Record-breaking totals are being spent on elections. Tuesday is election day.

According to the Open Secrets data, the fight for control of the House and Senate saw huge spending. For the final two years of President Joe Biden's first term, Republicans want to regain control of both chambers.

Outside groups spent a record amount of money to influence federal elections through October.

Outside spending for federal races has been led by two Republican committees.

The Senate Leadership Fund, which is aligned with McConnell, has poured over $200 million into the elections. The Congressional Leadership Fund has spent almost 200 million dollars.

Megadonors have poured millions of dollars into the upcoming elections. Some of the top donors going into Election Day are billionaires.

The person is Brian Schwartz.

Both parties sent out their all-star surrogates in the last days before the election.

Gisele Fetterman stands nearby as Barack Obama campaigns for John Fetterman in Pittsburgh, Pennsylvania.

The person is Quinn Glabicki.

During a campaign stop on the Arizona First GOTV Bus Tour in Queen Creek, Arizona, Steve Bannon, former advisor to U.S. President Donald Trump, is joined by Republican candidate for Arizona Governor.

TheBrianSnyder

In Las Vegas, Nevada, Bill Clinton will be at a rally in support of Catherine Masto.

David is named David.

Roger Stone, Donald Trump's long time associate and political advisor, attended a rally in Miami, Florida, US, in November of 2022.

Marco Bello is a person.

Herschel Walker was speaking at a rally in Hiram, Georgia.

Nathan Posner is a photographer.

President Joe Biden, former President Barack Obama and senatorial candidate John Fetterman are campaigning in Pennsylvania.

The person is Kevin Lamarque.

Donald Trump watches a Pennsylvania Republican U.S. Senate candidate speak at a pre- election rally.

The person is Mike Segar.

US President Joe Biden and New York Governor Kathy Hochul wave to the crowd.

Saul Loeb is featured in a photo.

The Democratic Senator for Georgia is joined by Spike Lee at a campaign event.

The person is Bob Strong.