Continuing his Sunday tweetstorm, President Trump announced his plan to "officially" demand tomorrow that the Department of Justice investigate whether the FBI and DOJ under the Obama administration "infiltrated or surveilled" the Trump campaign.

The big picture: As Axios' David Nather reported last week, there's no evidence that these agencies placed a "spy" inside the Trump campaign. But, per the Washington Post, the FBI did utilize an informant — named by NBC News as American academic Stefan Halper — to attempt to solicit information from Trump campaign associates Carter Page, George Papadopoulos, and Sam Clovis for the Russia investigation.