Sen. John McCain, R-Ariz., tweeted photos of himself Saturday hanging out with Sen. Lindsey Graham, R-S.C., and former Connecticut Sen. Joe Lieberman hours after McCain's daughter said her father completed his first round of chemotherapy.

"The three amigos together again!" tweeted McCain, who was diagnosed with a brain tumor earlier this year.

Meghan McCain, the senator's daughter, tweeted Friday that her father finished his first round of radiation and chemotherapy treatment.

"His resilience & strength is incredible," she tweeted. "Fight goes on, here's to small wins."

Another tweet from Sen. McCain shows his daughter hanging out with the gang.