A super PAC in support of Joe Biden’s presidential candidacy launched Wednesday following a change in tone from the campaign on its tolerance for outside super PAC support.

“It’s clear from his actions that Donald Trump is afraid to run against Joe Biden,” the Unite the Country super PAC’s website states. “He and his allies are already spending millions of dollars to attack Joe. Our mission is to support Joe Biden, take the fight to Donald Trump and elect a president who will stand up for all of us.”