Missouri’s senior senator is still weighing whether she’ll vote to support President Obama’s nuclear deal with Iran, and she says that’s okay.

Senator Claire McCaskill (D) chairs a hearing by a Senate subcommittee on consumer protection.

Senator Claire McCaskill (D)

Senator Claire McCaskill (D) said she is still ascertaining what would happen if the U.S. pulls out of the deal to get Iran to limit its nuclear program for ten years. She’s said that for a couple of weeks, and told Katie Couric that’s what lawmakers were meant to do.

“Everybody says, ‘Why aren’t you deciding?’ The Republicans insisted on 60 days, and it looked like to me that most of them made up their mind in about five minutes,” said McCaskill. “I’m taking the time that we were given in Congress to really explore every inch of this deal and what the alternative is.”

She said there are parts of the deal that she doesn’t like, including that it wouldn’t completely shut down Iran’s nuclear development.

“That they’re going to allow to develop a domestic power, nuclear capability, which could be transitioned to the capability years down the line,” said McCaskill.

She also doesn’t like its outline for inspections, including that they could be delayed up to 24-days.

“They’re assuring us that they can still see what has occurred even if it is 24-days, but that’s troubling,” said McCaskill.

McCaskill has been finding out whether other countries would honor sanctions if the U.S. backed out of the deal.

“China was very clear with me when I talked to them that they do not believe they have to recognize U.S.-imposed sanctions, only those sanctions imposed by the security council of the United Nations,” said McCaskill. “I haven’t talked to Japan or South Korea or India yet.”