John McCain | KERA News

John McCain

In what appeared to be a thinly veiled reference to politics in the Age of Trump, Sen. John McCain on Monday warned Americans against "half-baked, spurious nationalism," calling the abandonment of U.S. global leadership "unpatriotic."

Speaking in Philadelphia, where he was being honored with the Liberty Medal by the National Constitution Center, McCain did not mention the president by name, but his words appeared to be aimed at Trump and his administration.

The latest Republican push to repeal key parts of the Affordable Care Act appears to have met the fate of all previous Senate repeal efforts this year — it doesn't have the votes needed to pass the chamber.

Maine Sen. Susan Collins announced Monday that she will oppose the bill, authored by South Carolina Sen. Lindsey Graham and Louisiana Sen. Bill Cassidy. Collins' decision means three Republicans have now publicly said they are against the bill — and that is one more than the GOP could afford to lose.

Updated at 3:36 p.m. ET

Sen. John McCain may, once again, be the savior of President Barack Obama's signature domestic achievement.

The Arizona Republican announced in a statement on Friday that he opposes the latest GOP legislation to dismantle the Affordable Care Act.

Arizona Sen. John McCain has been diagnosed with brain cancer, the Mayo Clinic Hospital in Phoenix says. McCain, 80, underwent surgery for a blood clot on July 14.

The hospital says testing revealed that a tumor "known as a glioblastoma was associated with the blood clot."

"The Senator and his family are reviewing further treatment options with his Mayo Clinic care team. Treatment options may include a combination of chemotherapy and radiation," the hospital statement said.