How to Watch, Live Stream Trump's Tuesday Rally in Pennsylvania, a Crucial State for the President

Donald Trump is set to appear again in Pennsylvania, a critical state for the president, on Tuesday night for a "comeback" rally in Moon Township—his fourth visit to the state this month.

The appearance at an Atlantic Aviation hangar near Pittsburgh International Airport is scheduled to begin at 7 p.m. Doors open at 4 p.m., and attendees can register for up to two tickets on the campaign website.

For those watching at home, the rally will be live streamed. Viewers can register for the virtual event here.

Trump last appeared in the battleground state at another airport hanger rally, on September 3 in Latrobe. During the appearance, the president reminded Pennsylvania voters to sign their mail-in ballots, a voting process he has publicly denounced in the past.

"You have to make sure your vote counts, because the only way they are going to be able to beat us is by doing that kind of stuff," Trump told the crowd earlier this month.

Pennsylvania's politically divided electorate and 20 electoral votes will play a key role in the November election. In 2016, Trump won all 20 in the state, edging out Democrat Hillary Clinton by less than 1 percentage point, and his campaign is hoping to pull off a repeat victory.

Trump Pennsylvania rally
President Donald Trump speaks at a campaign rally at Arnold Palmer Regional Airport in Latrobe, Pennsylvania, on September 3. Jeff Swensen/Stringer

His opponent, Joe Biden, has also made four visits to the Keystone State, the latest on Sunday following the death of Supreme Court Justice Ruth Bader Ginsburg. During his address in Philadelphia, Biden slammed Trump and Senate Republicans for pursuing a Supreme Court nomination with less than 50 days until Election Day.

A day after the justice's passing, Trump tweeted that Ginsburg's seat on the court must be filled "without delay."

Many argue that the nomination should come after the next president's inauguration and be made by whoever wins the election. According to a new poll from Reuters, half of Republicans think the decision should wait.

Winning Pennsylvania will also be of the utmost of importance to Biden. No Democrat has won the presidency without the state's support since Harry S. Truman in 1948.

Polls in the state show that the two candidates are in a close contest. A Real Clear Politics survey puts Biden at a 5.7-point lead in his home state. In 2016, Clinton had a 6.5-point advantage over Trump.

Trump's campaign will be back in Pennsylvania over the weekend, when the president hosts another "Great American Comeback" event on Saturday night in Middletown.