Live updates: Polls open with control of Congress on the line, Trump says US will cut off Israel aid

Election Day is here, with President Trump's political capital on the line as Democrats eye a potential blue wave and Republicans scramble to defend their congressional majorities.

President Trump has campaigned across the country in recent months, holding 28 in-person rallies in addition to a series of telerallies . He's made stops in states including Ohio, Texas, Iowa, Kansas and Alaska, as well as deep-red states like Mississippi and South Carolina, where polls have shown unexpectedly competitive races.

The Cook Political Report on Monday shifted its rating of the Michigan Senate race from a toss-up to lean Democratic, while Decision Desk HQ is forecasting Democratic victories in Texas, Alaska and Maine that could put the party in a strong position to reclaim the Senate. Political analyst Nate Silver also predicted a " blue tsunami " is on the horizon. Here is your election night cheat sheet.

In the Middle East, the U.S. military targeted radar detectors and missile launchers on Qeshm Island as the Trump administration weighs renewing strikes on Iran after the midterms.

Trump is set to participate in an election night viewing reception as voters head to the polls to decide the balance of power in Congress next year.