"Hopefully we'll win:" Donald Trump supporters expected a long night -- and close race

OSHKOSH -- Supporters of Republican presidential candidate Donald Trump gathered at the Oshkosh Convention Center in Oshkosh Tuesday night, November 8th to watch the election results come in.

Trump supporters said they expected it to be a long night -- and a close race.

"I really am concerned about the future and what we're leaving behind for our kids, so I believe the country needs to get focused back on some of the things we've lost," Mark Dosogne said at the party in Oshkosh.

On Tuesday, Donald Trump voted at a public school in Manhattan -- just blocks from his home and office at Trump Tower.

He smiled and waved -- accompanied by his wife Melania and daughter Ivanka.

He was met with both cheers and boos, but he posed for photos and continued waving.

Donald Trump

Trump said: "it's a great honor, a tremendous honor" to be casting his ballot.

He said he's feeling confident about the outcome, citing "tremendous enthusiasm."

His final message to voters: "Make America great again. That's all it is. That's what it's all about."

His election night party was held in Manhattan.

Some polls predicted a tightening race, with Trump still trailing on election day. Supporters worked the phones -- reminding people to vote on Tuesday.

Trump on Tuesday predicted victory.

"I think we're going to see a big win for the state.  I think we're going to deliver Wisconsin for Trump. The state hasn't gone Republican in 32 years. We feel really good about our chances. I think we're going to send Ron Johnson back to the Senate and I think the American people want to send outsiders into fix what the Washington insiders have created," Matthew Schuck with the Wisconsin Trump campaign said.

It remained unclear Tuesday whether he plans to accept the outcome of the election, should he lose.

"We're going to see on how things play out. Hopefully they'll play out well and hopefully we won't have to worry about it. Meaning, hopefully we'll win. But we're gonna see how they play out," Trump said.

Presidential candidates Donald Trump and Hillary Clinton.