Kyle Kirkwood hangs on to win Freedom 250 Grand Prix in Washington

Kyle Kirkwood crossed the finish line in first place to win the Freedom 250 Grand Prix in Washington, D.C., on Sunday afternoon.

Kirkwood, one of a few American drivers in the race, took the lead from Álex Palou early in the race and didn't look back. He showed pace all weekend and was especially strong in the race, with only Palou able to keep up with him at times.

ZERO BS. JUST DAKICH. TAKE THE DON'T @ ME PODCAST ON THE ROAD. DOWNLOAD NOW!

However, some late cautions erased much of Kirkwood's work, and presented a golden opportunity to Arrow McLaren's Christian Lundgaard.

Lundgaard - who is currently without a drive for next season - was strong early in the final green flag run thanks to his red alternate tires, an advantage over Kirkwood's primary set, but it seemed like they started to fall off as the laps wound down.

Kirkwood was followed by Lundgaard in second, while Kirkwood's Andretti Global teammate Will Power took the last step of the podium.

The win was crucial for Kirkwood's championship hopes as it cut Palou's championship lead down to 91 points.

The Spaniard had a rough day at the office. He was dealt a drive-thru penalty on his first pit stop of the race and his team had an issue with his front left tire on another stop.

Then, on lap 122, Palou made a third uncharacteristic error and crashed, bringing out a late caution.

CLICK HERE FOR MORE OUTKICK SPORTS COVERAGE

It was Kirkwood's second win of the season. His first came at the Grand Prix of Arlington earlier this season.

The 27-year-old now has seven career wins, six of which have come on street circuits.

It remains to be seen whether Kirkwood will get a chance to go back-to-back in the nation's capital. The Freedom 250 Grand Prix is expected to be a one-off event to mark the celebration of America's 250th anniversary. 

President Donald Trump and first lady Melania rode in the Beast as part of an honorary lap ahead of the race. The president also waved the green flag to start it, while Transportation Secretary Sean Duffy waved the checkered flag.

There are three races left in the IndyCar season, meaning the championship battle is still very much on. 

Next weekend is a double-header at the Milwaukee Mile, while the season finale will take place at WeatherTech Raceway Laguna Seca on September 6.

All NTT IndyCar Series races air on FOX.