Political leaders shifted Tuesday to get-out-the-vote mode, making last-minute appeals for supporters to cast their ballots before it's too late.

"This election is about our future. It's about what we want this country to be," President Obama said in a new Web video. "If you vote, you get a say in that future. But if you don't, you leave the decisions that affect your life up to someone else."

Obama's capping off a weeks-long push for high turnout, including through early voting, where it's available. He'll also make a series of calls into radio shows on Tuesday — as will Vice President Biden — where he's expected to pitch listeners on why they should turn out.

But the president is hardly the only political leader who's pivoted from campaign mode to turnout mode. Campaigns all across the country are finishing their months-long endeavors and have now turned to their "ground game," or efforts to ensure their supporters make it to the voting booth.

"I urge all Americans to exercise their right to vote today. Participating in our democratic system honors all those who have defended it in every generation," National Republican Senatorial Committee (NRSC) Chairman John Cornyn (Texas) wrote in an e-mail to GOP supporters. "It's how Americans ensure that our country's best days lie ever ahead of us."

"Today, Americans in every state go to the polls to chose their Congressional Representatives," said National Republican Congressional Committee Chairman Pete Sessions (Texas). "I know you are dedicated to helping put a Republican Majority in place to unseat Speaker Pelosi, so I am confident you intend to vote."

Find a list of the times at which polls close here.

Updated 10:14 a.m.