President Donald Trump said Wednesday that triple-digit temperatures won’t shorten his Independence Day address on the National Mall, joking that he will deliver a “really long” speech.

“By the way, on July Fourth, it’s going to be approximately 107 degrees out, and I’m going to go, and I’m going to make a really long speech just to show that I can do anything,” Trump said, speaking during ceremonies for the opening of Theodore Roosevelt’s new presidential library in North Dakota.