Robert Mueller, the special counsel, first indicted Paul Manafort and Rick Gates, the former chairman and deputy chairman of Donald Trump’s presidential campaign, last October on charges including money laundering and conspiracy against the United States. At the time, the White House and its apologists argued that these alleged crimes pre-dated the campaign, and were thus unrelated to any putative election-related conspiracies with Russia. Tweeted Trump, “Sorry, but this is years ago, before Paul Manafort was part of the Trump campaign.”