Trump vows to give long July 4 address even if it is 107 degrees

President Trump on Wednesday vowed that he will deliver a long speech on the National Mall for the U.S.'s 250th birthday, even as forecasters anticipate temperatures climbing to 107 degrees.

"By the way, on July 4, it's going to be approximately 107 degrees out, and I'm going to go, and I'm going to make a...