U.S. President Donald Trump tried on Tuesday to calm a storm over his failure to hold Russian President Vladimir Putin accountable for meddling in the 2016 U.S. election, saying he misspoke in a joint news conference in Helsinki on Monday.

Trump stunned the world by shying away from criticizing the Russian leader for Moscow¡¯s actions to undermine the election and cast doubt on U.S. intelligence agencies, prompting calls by some U.S. lawmakers for tougher sanctions and other actions to punish Russia.

¡°I said the word ¡®would¡¯ instead of ¡®wouldn¡¯t,¡¯ ¡± Trump told reporters at the White House, more than 24 hours after his appearance with Putin. ¡°The sentence should have been, ¡®I don¡¯t see any reason why it wouldn¡¯t be Russia.¡¯ ¡±