President Donald Trump says he hopes Arizona Sen. John McCain gets better soon and calls him a "crusty voice in Washington."
Trump adds, "Plus, we need his vote."
McCain's office says the 80-year-old Arizona senator underwent surgery Friday to remove a blood clot. He is recuperating at home.
Trump brought up McCain while calling for the repeal of the national health care law during a trade event at the White House.
McCain's absence has led Senate leaders to postpone action on the health care measure. It needs almost every Republican vote to pass.
Trump says: "We hope John McCain gets better very soon. We miss him."
