Retired General Mike Flynn picked South Carolina primary day to deliver a blunt message to Republican voters.
Fire Lindsey Graham.
Flynn posted his call on X on June 9, telling voters they had the power to remove Graham from the United States Senate and vote for Mark Lynch instead.
Lynch is the Greenville businessman challenging Graham from the America First lane.
South Carolina, I need you to hear this clearly.
Tomorrow, Tuesday June 9th, you have the power to remove @LindseyGrahamSC from the United States Senate. Decades in Washington and what does South Carolina have to show for it?
1. Open borders,
2. Endless foreign wars and,
3.… pic.twitter.com/ehDiVMIHuG— General Mike Flynn (@GenFlynn) June 9, 2026
Flynn’s list of grievances was short and familiar to conservatives who have soured on Graham.
Open borders. Endless foreign wars.
A ruling class that answers to donors before it answers to voters.
The votes are still being cast, and South Carolina Republicans will decide what happens today.
But the fight itself is already revealing.
Graham is not limping into the primary without cover. He has President Trump’s endorsement, and he is running on that connection right to the end.
Graham’s own closing post from Seneca, where he wrapped up his get-out-the-vote tour, asked supporters to deliver for President Trump.
Ending our Get Out the Vote tour back home in Seneca where it all started.
Let’s deliver for President Trump tomorrow, and thank you for your support – it means the world. pic.twitter.com/6u8oPI19z4
— Lindsey Graham (@LindseyGrahamSC) June 9, 2026
That is what makes this primary-day clash interesting.
The official endorsement lane says Graham is the Trump-backed incumbent. The grassroots backlash says the senator’s record still does not match the America First movement.
The Mark Lynch campaign lays out its America First case against Graham this way:
Lindsey Graham has consistently supported foreign aid packages, interventionist policies, and visa programs that prioritize global interests over American workers and taxpayers.
From backing billions in overseas spending to supporting policies that undercut domestic wages, his record reflects a Washington-first mindset, not an America First one.
Mark Lynch believes the federal government’s first responsibility is to the American people. That means securing our economy, protecting our workers, and ensuring taxpayer dollars are spent at home before being sent overseas.
End foreign aid to countries that do not provide a clear, direct benefit to U.S. national interests. Prioritize funding for veterans’ healthcare, housing, and services before any foreign commitments
End H-1B, OPT, and similar visa programs to prevent wage suppression and protect American jobs and students
Oppose trade and labor policies that incentivize outsourcing or replace American workers
ADVERTISEMENTRequire full congressional approval and transparency for all major foreign aid and international spending packages
Lynch made the argument directly on primary day, accusing Graham of claiming support for President Trump while working against the America First agenda.
South Carolina voters are asking the obvious question:
How can Lindsey Graham claim to support President Trump when he keeps working against Trump’s America First agenda?
Graham pushed the Russia collusion hoax, backed Obama and Biden judges who block Trump’s policies, and… pic.twitter.com/2LVaoVbGdp
— Mark Lynch for U.S. Senate (@MarkLynchSC) June 9, 2026
That is the pressure point in South Carolina.
Graham has the endorsement, the office, and decades of name recognition. Flynn and Lynch are betting that years of frustration with the senator will matter more at the ballot box.
South Carolina Republicans get to settle that argument today.
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