Sen. Ted Cruz refuses to get into a tit-for-tat with mostly-anonymous Republicans who continue bombarding him with criticism as he presses colleagues in Congress to defund Obamacare.

The Texas Republican was asked Monday about the attacks in an interview with Fox News host Sean Hannity.

"Well, look, I mean, folks can do whatever they want to resist change, and there are a lot of people who have been in Washington a long time that are fearful of change, they're fearful of risk, they're fearful of anything that changes the clubby way Washington does business," Cruz said.

Cruz vowed to ignore all of the attacks against him, insisting that his political fight was not personal.

"No matter what insults others choose to hurl at me, and in the last few weeks they have picked quite a few -- some have been amusing, actually -- no matter what, I'm not going to respond in kind," Cruz said. "My job is to represent 26 million Texans and fight to defend them, and Obamacare is hurting Texans, hurting Americans."