CBS News:

President Trump has signed a sweeping sanctions measure that targets Russia, Iran and North Korea, the White House said in a statement Wednesday.

The president's signature comes after some speculation that he could veto or not sign the legislation, which passed both chambers of Congress in overwhelming votes last week. Vice President Mike Pence and other White House officials had signaled, however, that Mr. Trump planned to sign the bill into law.

While he signed the bill, the president made clear in a statement Wednesday that he's signing the bill "for the sake of national unity" even though he isn't satisfied with some of its provisions. 

"I favor tough measures to punish and deter bad behavior by the rogue regimes in Tehran and Pyongyang. I also support making clear that America will not tolerate interference in our democratic process, and that we will side with our allies and friends against Russian subversion and destabilization," he said. 

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