Immediately after news broke that Sen. John McCain (R-AZ) had been diagnosed with brain cancer, journalists and politicians alike rushed to offer their condolences and support to the one-time presidential nominee.

“John McCain has been a fighter all his life and this is just the latest challenge. We are praying for his speedy recovery,” McCain’s colleague, Sen. John Cornyn (R-TX) tweeted.

“If anyone can fight through this, it’s your dad,” journalist Mike Tracy tweeted at Meghan McCain. “All of AZ is rooting for him, our thoughts are with you.”

“No matter what your party affiliation is, I think most of us can agree Senator McCain has sacrificed a lot for his country,” journalist Yashar Ali said.

Read some of the best responses to McCain’s sad news below.

Glioblastoma is a hideous disease. John McCain is a hero. I wish for comfort and peace for him and his family.

— Molly Knight (@molly_knight) July 20, 2017

We've had our disagreements, but @SenJohnMcCain is an American hero & legendary Arizonan. I wish him the best in the difficult times ahead.

— Ruben Gallego (@RepRubenGallego) July 20, 2017

Fuck cancer. Best wishes to John McCain for a speedy recovery. Also? Fuck cancer. https://t.co/K40i9swjQr

— shauna (@goldengateblond) July 20, 2017

John McCain is as tough as they come. Thinking of John, Cindy, their wonderful children, & their whole family tonight.

— Hillary Clinton (@HillaryClinton) July 20, 2017

John McCain is an American hero & one of the bravest fighters I've ever known. Cancer doesn't know what it's up against. Give it hell, John.

— Barack Obama (@BarackObama) July 20, 2017

Thank you, @SenJohnMcCain, for your dedication to public service. Sending thoughts for a full and speedy recovery.

— Rep. Ro Khanna (@RepRoKhanna) July 20, 2017

Barb and I will pray for John McCain recovery fr brain cancer. Pls join us

— ChuckGrassley (@ChuckGrassley) July 20, 2017

I'm thinking of John McCain & the millions suffering serious illness & praying we as a country ensure they have access to medical treatment

— igorvolsky (@igorvolsky) July 20, 2017

My thoughts and prayers are with Senator John McCain and his family tonight. Here's to a speedy recovery for a true American hero.

— Andrew Cuomo (@NYGovCuomo) July 20, 2017

If anyone can beat cancer, it’s a fighter pilot like @SenJohnMcCain. Bobbi & I wish him a speedy recovery & look forward to seeing him soon.

— Sen. John Barrasso (@SenJohnBarrasso) July 20, 2017

.@SenJohnMcCain is a friend, a fighter, and a great American. My prayers will be with him, his family, and his staff in the days ahead.

— Senator Bob Corker (@SenBobCorker) July 20, 2017