Charlie Neibergall, File, Associated Press
FILE - In this Aug. 25, 2015 file photo, Republican presidential candidate Donald Trump walks with his campaign manager Corey Lewandowski, left, after speaking at a news conference in Dubuque, Iowa. Trump says his decision to stand behind his campaign manager after he was charged with assaulting a female reporter is a sign of loyalty, a trait that Trump has displayed, for better or worse, through much of his career.

APPLETON, Wisconsin — Donald Trump says his decision to stand behind his campaign manager, who was charged in an altercation with a female reporter, is a sign of loyalty — a trait that Trump has displayed, for better or worse, through much of his career.

Trump tells The Associated Press he wouldn't have accepted Corey Lewandowski's resignation even if it had been offered. But he also seemed to acknowledge that he's had a difficult week leading into what could be a crucial primary in Wisconsin Tuesday.

Asked in a brief telephone interview Thursday evening whether he was having a tough week on the trail, Trump sounded resigned.

He said, "I think, you know, it's a week. You have weeks that are some good, some not so good, and, you know, it's a week."