Fog Blog U.S. Politics Log:

McCain -- with a simple, yet dramatic, thumbs down on the Senate floor in the wee hours of Friday morning -- signaled to the Senate, his colleagues and the rest of the United States that he was not prepared to go along with the latest Republican plan to repeal and replace Obamacare.

After the vote, the 80-year-old senator, who earlier this month was diagnosed with brain cancer, was seen laughing with Sens. Susan Collins and Lisa Murkowski, the two other Republicans who voted against the health care bill.

Trump fumed at the loss, tweeting that the three Republicans "let the American people down," linking them to the Democrats who were uniformly against the plan.