President Joe Biden heartily attacked Republican lawmakers Wednesday night during a private campaign fundraiser in San Francisco, California.

Biden has been battling with House Speaker Mike Johnson (R-LA), other House Republicans, and, from a distance, former President Donald Trump over efforts to reform immigration policy and extend aid to Ukraine, Israel, and Taiwan. During the fundraiser, the president claimed that this group was harder to deal with than the “real racists” he served with in the Senate in the 1970s.