WASHINGTON, DC — Sen. Rob Portman (R-OH), best known as the “boring” choice atop Mitt Romney’s vice presidential list, told ThinkProgress today that he doesn’t believe it should be illegal to fire someone for being gay because doing so would make businesses less “comfortable.”

In an interview at the Faith & Freedom Conference, Portman explained why he opposes the Employee Non-Discrimination Act, which would ban firing someone because of his or her sexual orientation or gender identity. “What I’m concerned about in Paycheck Fairness and other legislation like that is the fact that it will spawn a lot of litigation the way the legislation is written,” the Ohio Senator said. He worried that the legislation “would make it more difficult for employers to feel comfortable.”