The U.S. Chamber of Commerce announced Tuesday that it was backing the businessman and former state lawmaker, who is challenging Sen. Joe Donnelly.

With less than two months until the election, Mike Braun has yet to purchase air time for October, while incumbent Joe Donnelly (D-Ind.) has outspent him by almost double on TV and radio since June, records show.

Indiana Sen. Joe Donnelly said Monday that a planned vote on Supreme Court nominee, Judge Brett Kavanaugh, should be postponed. Donnelly's opponent, Republican Mike Braun, said Tuesday he supported the decision to review the allegations.

Senate Democrats want to delay Supreme Court nominee Brett Kavanaugh's confirmation vote, after a woman went public to accuse Kavanaugh of sexual assault at a high school party decades ago.

Indiana Democratic Sen. Joe Donnelly talks with Here & Now's Jeremy Hobson about his Senate race against former state Rep. Mike Braun.

The Senate Leadership Fund on Tuesday announced the campaign, which will run across the state on broadcast TV, cable, radio and online.

It's been several election cycles since the Indiana FOP endorsed a candidate in a U.S. Senate race.

Nominee Judge Brett Kavanaugh goes before the Senate Judiciary Committee this week. He's likely to be grilled by Democrats over abortion, guns and presidential power. Tuesday's session will be dominated by opening statements from committee members.

It's the first time the influential business organization hasn't backed a Senate candidate since its endorsements began.

The legislation would double Centers for Disease Control funding to help reduce lead poisoning.