• Sen. John McCain died Saturday after a year-long fight with brain cancer.

• Tributes and condolences poured in the wake of McCain's passing from politicians, the U.S. military's top brass, and celebrities.

America's warrior politician Sen. John McCain died Saturday after a year-long fight with brain cancer.

McCain, 81, was a naval aviator, prisoner of war, conservative statesman, and presidential candidate.

Tributes and condolences poured in the wake of McCain's passing from politicians, the U.S. military's top brass, and celebrities.

"I was with my father at his end, as he was with me at my beginning," wrote McCain's daughter Meghan in an emotional statement.

"In the thirty-three years we shared together, he raised me, taught me, corrected me, comforted me, encouraged me, and supported me in all things. He loved me, and I loved him. He taught me how to live. His love and his care, ever present, always unfailing, took me from a girl to a woman — and he showed me what it is to be a man."

Meghan McCain Tweet

McCain's wife, Cindy, paid tribute to her late husband by writing on Twitter, "I am so lucky to have lived the adventure of loving this incredible man for 38 years. He passed the way he lived, on his own terms, surrounded by the people he loved, in the place he loved best."

Cindy McCain Tweet

President Donald Trump, former presidents Barack Obama and Jimmy Carter remembered the late 2008 Republican presidential nominee.

Trump Tweet

"Few of us have been tested the way John once was, or required to show the kind of courage that he did," President Obama wrote in a statement. "But all of us can aspire to the courage to put the greater good above our own. At John's best, he showed up what that means. And for that, we are all in his debt."

Obama Tweet

President Bill Clinton wrote in a statement that he would always be grateful for McCain's efforts to "put partisanship aside to do what he thought was best for the country."

"John McCain believed that every citizen has a responsibility to make something of the freedoms given by our Constitution, and from his heroic service in the Navy to his 35 years in Congress, he lived by his creed every day."

Bill Clinton Tweet

Former Vice President Joe Biden, whose son Beau Biden died of the same brain cancer McCain was diagnosed with, offered his condolences to the late senator's family.

"John McCain's life is proof that some truths are timeless. Character. Courage. Integrity. Honor. A life embodying those truths casts a long, long shadow. John McCain will cast a long shadow." "His impact on America hasn't ended. Not even close. It will go on for many years to come."