Unlike past the last competitive Democratic presidential primary election in 2008, U.S. Sen. Bob Casey wasted no time getting behind a candidate this time around.

Moments after former Vice President Joe Biden officially announced his candidacy for president, Casey endorsed him.

In 2008, the last time Biden ran, Casey waited until the race was down to Sens. Barack Obama and Hillary Clinton before surprising everyone and endorsing Obama in late March of that year.

Casey’s early endorsement could spark speculation that he might be Biden’s running mate, though that seems unlikely considering the political environment.

Here’s his statement endorsing Biden:

Today, U.S. Senator Bob Casey (D-PA) announced that he is endorsing Vice President Joe Biden for President:

“The corporate agenda of President Trump and Congressional Republicans has betrayed the middle class, our children and all Americans seeking a fair shot at the American Dream. These policies have increased the fortunes of the super-rich and large multi-national corporations, while leaving behind too many working families struggling to make ends meet.

At this make-or-break moment for the middle class, our children and our workers, America needs Vice President Joe Biden to be its next President. Joe Biden has spent a lifetime fighting battles on behalf of hardworking Americans while ensuring America’s values and interests are represented abroad. As both a U.S. Senator and our Vice President, he has delivered results for the middle class, kept our country safe and strengthened our standing in the world.

I have worked closely with Joe Biden on a range of issues important to the people of Pennsylvania while he served as Vice President and U.S. Senator. I know he will fight for Pennsylvania families as President. In order to accomplish the urgent task of defeating President Trump, Democrats must win Pennsylvania. Joe Biden can and will win Pennsylvania if he is the Democratic nominee for President.

I am confident that Vice President Joe Biden will work to raise wages for middle class families, provide a better future for our children and restore America’s standing in the world and that is why I am endorsing him to be the next President of the United States.”