Lindsey Graham: Trump response to McCain death "disturbing"
Sen. Lindsey Graham of South Carolina shared a close friendship with the late Sen. John McCain for more than 20 years. From the halls of the Senate to the campaign trail, to nearly 50 overseas trips to war zones, their bond was a rarity in a rancorous Congress. Graham spoke to "CBS This Morning" co-host John Dickerson about President Trump's reaction to McCain's death, White House counsel Don McGahn, and the special counsel investigation.