Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Washington (CNN) White House chief of staff Reince Priebus pushed back Sunday against the Russian account of the meeting President Donald Trump had with Russian President Vladimir Putin on the sidelines of the G20 summit in Germany. Speaking on "Fox News Sunday," Priebus said Trump did not believe Putin's claim Friday that Russia had not attempted to influence the 2016 US presidential election. "The President absolutely did not believe the denial of President Putin," Priebus said. "What the President did is he immediately came into the meeting, talked about Russian meddling in the US election, went after that issue at least two separate times."Reince Priebus said Russia wasn't "off the hook" after comments from President Donald TrumpThe White House chief of staff said the two countries needed to move forward 
 Question:Priebus said an "extensive portion" of the first meeting between the two leaders was dedicated to the issue and offered what he said was _'s position.

Donald Trump