NEW YORK - Meghan McCain choked up as she spoke about her father's health on air Monday as the newest co-host of ABC's "The View."

McCain, the daughter of Sen. John McCain, teared up when her co-hosts asked her how her father was doing.

"When you hear cancer, a nuclear bomb goes off in your life," McCain said on "The View." "No matter who you are. I didn't realize how intense and disruptive and scary and hopeless and chaotic you would feel all day long."

She continued to say that she is committed to finding a cure for cancer.

Sen. John McCain tweeted a video of his daughter talking about his health on the show Monday. He added, "our family couldn't be prouder of all that you continue to accomplish."

The senator was diagnosed with brain cancer, more glioblastoma, in July.

As a new co-host, McCain will represent a conservative perspective on the daily chat show.

She replaces conservative commentator Jedediah Bila, who exited "The View" last month. McCain joins a panel that also includes moderator Whoopi Goldberg and co-hosts Joy Behar, Sara Haines, Sunny Hostinand Paula Faris.

Most recently, McCain served as host on Fox News' "Outnumbered."

"The View" airs weekdays at 11 a.m. Eastern on ABC.

The Associated Press contributed to this story.