The final vote on the Republican tax bill is slated for sometime this week.
President TrumpDonald John TrumpHouse Democrat slams Donald Trump Jr. for "serious case of amnesia" after testimony Skier Lindsey Vonn: I don't want to represent Trump at Olympics Poll: 4 in 10 Republicans think senior Trump advisers had improper dealings with Russia MORE said Sunday he believes McCain would return to Washington if Republicans needed his vote.
In a statement provided by Mr. McCain's office on Sunday, Dr. Mark R. Gilbert, chief of the neuro-oncology branch at the National Institutes of Health's National Cancer Institute, offered an upbeat assessment of the senator's health.
McCain had spent several days last week at Walter Reed National Military Medical Center in Bethesda, Maryland recovering from side effects stemming from chemotherapy treatment for brain cancer. The statement says the senator appreciates the outpouring of support from people around the country.
If McCain is absent, Republicans - who have a 52-48 majority in the Senate - can only afford one defection if the measure is to pass.
The vote is expected to come this week to fulfill a promise to pass the bill before Christmas.
Trump told reporters on Sunday that he spoke to McCain's wife, Cindy, and wished the couple well.
McCain was readmitted to another hospital in Baltimore on Wednesday for side effects resulting from his chemotherapy sessions
"They've headed back, but I understand he'll come if we ever needed his help, which hopefully we won't", Trump said.
In July, the 81-year-old senior senator from Arizona was diagnosed with glioblastoma, an aggressive form of brain cancer.
The House and Senate are scheduled to vote this week on the sweeping tax reform plan, which Trump has supported.
President Trump told reporters on December 17 that Sen. "And it's too bad, he's going through a very tough time, no question about it, but he will come back if we need his vote". Marco Rubio of Florida and Sen.
Meghan McCain's new husband, The Federalist's Ben Domenech gave an update on the senator's condition after the longtime Arizona senator was hospitalized earlier this week.