Sen. Pat Toomey argued Friday that Republican presidential nominee Donald Trump should stop talking about campaign issues that don’t pertain to Hillary Clinton, categorizing everything else as “unrelated discussions.”

Toomey, who’s engaged in an intense re-election battle himself, said on a conference call Friday morning that Trump should focus specifically on Clinton’s record during her tenure at the State Department, including her involvement in Libya and Syria. He added that it would be smart for Trump to “make this case” rather than discussing other issues.