He wrongly believed his popularity back home made him able to withstand a Trump-backed challenge.

The Kentucky Republican weighed in on President Donald Trump's Truth Social posts against his campaign, saying, "They're desperate."

The Kentucky Republican has emerged as perhaps the president’s most critical primary target after bucking him on issues ranging from budget legislation to the Epstein files.

Thomas Massie is really locking horns with President Donald Trump in Tuesday’s Republican primary.

Allies of Rep. Thomas Massie have taken a massive risk in helping him campaign against Trump-backed Ed Gallrein.

President Donald Trump is backing a challenger against Representative Thomas Massie in Kentucky's Republican primary. This race is the most expensive House primary ever. Trump…

The president has turned Thomas Massie into an even bigger enemy.