Pete Buttigieg singled out Democratic primary rivals Joe Biden and Bernie Sanders by name while arguing he’s best positioned to take on President Trump in 2020, a notable shift from his usual indirect swipes.

“I hear Vice President Biden saying that this is no time to take a risk on someone new. But history has shown us that the biggest risk we could take with a very important election coming up is to look to the same Washington playbook and recycle the same arguments and expect that to work against a president like Donald Trump,” Buttigieg, former mayor of South Bend, Indiana, and the youngest candidate in the race at 38, said during a campaign stop in Decorah, Iowa, on Thursday.