[10] In 2004, Weaver appeared in the documentary film (based on the 2003 book of the same name) Bush's Brain: How Karl Rove Made George W. Bush Presidential, which alleges that Karl Rove, former campaign manager and Deputy White House Chief of Staff to President George W. Bush, was behind a South Carolina push poll during the 2000 Republican primary that used racist innuendo to undermine support for McCain by asking voters: "Would you be more likely or less likely to vote for John McCain for president if you knew he had fathered an illegitimate black child?
[16] After Mitt Romney's defeat in the November 2012 general election, Weaver tweeted, "In our party, intolerance can no longer be tolerated".
"[19] Ultimately, according to The New York Times, Kasich's message "never caught on" and he "found himself stuck in fourth place in a three-man race.
"[20] Kasich suspended his campaign in May 2016, leaving Donald Trump as the only candidate remaining in the Republican field and hence the party's presumptive nominee.
[20] In 2019, Weaver and fellow Republican operatives George Conway, Steve Schmidt, and Rick Wilson wrote an op-ed published in The New York Times, calling for Donald Trump to be defeated in the 2020 presidential election.
"[5] Weaver co-founded The Lincoln Project, a super PAC organized by current and former Republican operatives opposed to the re-election of Donald Trump in 2020.
[7] In April 2019, Weaver signed a six-month $350,000 contract with a subsidiary of Rosatom, a Russian state corporation that specializes in nuclear energy, to lobby on “sanctions or other restrictions in the area of atomic (nuclear) energy, trade or cooperation involving in any way the Russian Federation”[21] and submitted a FARA registration form.
[24][25] According to The New York Times, Weaver offered young men professional support in exchange for sex; that report also accused him of cultivating a non-sexual online relationship with a 14-year-old boy and then engaging in "sexual banter" with him after his 18th birthday.
[24] In February 2021, The Lincoln Project announced plans for an external investigation to review Weaver's conduct during his tenure with the group.