Flynn, along with son Michael G. Flynn, runs Flynn Intel Group which provides intelligence services for business and governments.[31] Several sources, including Politico, have written that Flynn's consulting company is allegedly lobbying for Turkey. A company tied to Erdogan's government, which supports Muslim Brotherhood, is known to have hired Flynn's lobbying firm.[32][33][34][35][36][37] On election day 2016, Flynn wrote an op-ed calling for U.S. backing for Erdogan's government and criticized the regime's opponent, Fethullah Gulen; Flynn did not disclose that Flynn's consulting firm had received funds from a company with ties to Erdogan's government.[38] In July 2016, Flynn said that the coup attempt against Erdogan was something ”worth clapping for", but two months later, when a company tied to Erdogan's government hired Flynn's firm, Flynn hailed Erdogan as a critical U.S. ally.[39]
Flynn is a registered Democrat, having grown up in a "very strong Democratic family".[57] However, he was a keynote speaker during the first night of the 2016 Republican National Convention,[45] and he is a surrogate and top national security adviser for president-elect Donald Trump.
During a July 10, 2016, interview on ABC News' This Week, when asked by host Martha Raddatz about the issue of abortion, Flynn stated, "women have to be able to choose."[57][58] The next day, Flynn said on Fox News that he is a "pro-life Democrat".[59]
Flynn has been a board member of ACT! for America,[55] and sees the Muslim faith as one of the root causes of Islamist terrorism.[26] He has described Islam as a political ideology and a cancer.[26][60] He stated in a Twitter post that "fear of Muslims is RATIONAL"[55] and included a video link claiming that Islam wants ”80% of people enslaved or exterminated".[61] Initially supportive of Trump's proposal to ban Muslims from entering the US, Flynn later told Al Jazeera that a blanket ban was unworkable and has called instead for "vetting" of entrants from countries like Syria.[55] Flynn has stated the U.S. "should extradite Fethullah Gülen" to Turkey and "work constructively with Russia" in Syria.[28][62] In 2016 he said that he had personally seen photos of signs in the Southwest border area that were in Arabic to help Muslims entering the United States illegally. An officer of the National Border Patrol Council responded that he had never seen any signs delineating smuggling routes, let alone any in Arabic.[63]
Flynn is the author of The Field of Fight: How We Can Win the Global War Against Radical Islam and Its Allies, co-authored with Michael Ledeen, which was published by St. Martin's Press in 2016.[64] In reviewing the book, Will McCants of the Brookings Institution described Flynn's worldview as a confused combination of neoconservatism (an insistence on destroying what he sees as an alliance of tyranny, dictatorships, and radical Islamist regimes) and realism (support for working with "friendly tyrants"), although he acknowledged that this could be due to the book having two authors (it being co-authored by Michael Ledeen).[65]