Khizr Khan

"They have no idea what service and sacrifice is," Gold Star father Khizr Khan said of the Trump family over the weekend.

Khizr Khan's comments came as he joined a number of veterans who rebuked comments made by Donald Trump Jr. in his new book, in which he described a visit to Arlington National Cemetery.

He also told Newsweek he thought Trump didn't understand the depth of his sacrifice.

Khizr Khan, father of U.S. Army Captain Humayun Khan, who was killed during the Iraq war, said he had not been given a reason as to why his travel privileges were being reviewed.

Trump expressed regret on Thursday for remarks that "may have caused personal pain" as he sought to refocus his message in the face of falling opinion poll numbers.

Campaign manager defends Trump's comments on Clinton and the Second Amendment, sidesteps refreshed Gold Star controversy.

Trump is taking existing Republican rhetoric and deploying it at sharper pitches, before larger audiences.

Ohio governor won't vote for Hillary Clinton but still stands in opposition to Trump.

Trump's recent comments about a Muslim Gold Star mother has upended political loyalties among Muslim Republicans.

Obama said that the Republican candidate is "unfit to serve" as the country's president.

Trump's campaign appealed to GOP lawmakers for support as his attacks on the Muslim parents of a decorated American soldier killed in Iraq drew sharp rebukes from fellow party members.

Hillary Clinton is promoting her and Tim Kaine's support of religious freedom in response to Trump's criticism of Khizr Khan's speech at the Democratic National Convention.

Khan family calls Trump ignorant, saying "he doesn't know what the word sacrifice means."