Here is more from Axios:
President Biden assembled a group of outside Russia experts — including former Trump officials — to brief him for his summit with President Vladimir Putin, people familiar with the matter tell Axios.
Among the group of Biden briefers was Fiona Hill, a former National Security Council official who once said she considered feigning a medical emergency to cut short that news conference with Putin.
There were roughly a dozen participants, including two of President Obama’s former Russian ambassadors: Michael McFaul and John Tefft.
Rose Gottemoeller, an arms control expert now at Stanford University who served as deputy secretary general of NATO under Obama, and Eric Green, a career foreign service officer who is the NSC’s senior director for Russia, also participated.
Fiona Hill is a Senior Fellow at the Brookings Institution, and Michael McFaul is a Senior Fellow at the Hoover Institution. Rose Gottemoeller is a Research Fellow at the Hoover Institution and a Nonresident Senior Fellow at the Carnegie Endowment for International Peace.