Donald Trump aides and people close to his campaign are increasingly frustrated by his insistence on waging various fights that steer him off message.

Sources close to the campaign are describing a series of missteps that are trailing the GOP presidential nominee, most prominently his now multi-day battle against Khizr Khan, the Muslim father of a killed US soldier.

Donald Trump’s strange campaign gets stranger

Trump has spent the days since the Democratic convention litigating whether their son is a hero, and on Tuesday only moved onto an equally unhelpful news cycle: whether he supports House Speaker Paul Ryan, and the 2008 presidential