The third of four televised debates in Maine’s pivotal Senate race descended into sharp, personal exchanges on Tuesday night, as Republican incumbent Susan Collins and Democratic challenger Troy Jackson sparred over the administration’s escalating involvement in Iran and the enduring shadow of Donald Trump. The encounter, held at the University of Maine in Orono, offered voters their clearest look yet at the ideological fault lines defining a contest that could tip the balance of power in the upper chamber.
A Referendum on the Iran Intervention
Foreign policy dominated the opening half-hour, a departure from previous debates that centred on healthcare and the economy. Collins defended the White House’s decision to authorise targeted strikes against Iranian proxy forces, framing the action as a necessary deterrent against regional destabilisation. She argued that strength projects credibility, warning that hesitation invites aggression.
Jackson countered that the strikes represent an undeclared war, bypassing Congress and risking a wider conflagration. He accused Collins of rubber-stamping executive overreach, pointing to her vote against a war powers resolution earlier this year. “You cannot claim to be a check on power when you consistently refuse to check it,” Jackson said, drawing applause from the audience.
The senator fired back, labelling her opponent’s position “dangerously naive” and suggesting it would embolden adversaries. The exchange grew testy when Collins invoked her seniority on the Appropriations Committee, implying Jackson lacked the experience to navigate the intelligence briefings that inform such decisions.
The Trump Factor Looms Large
If Iran provided the policy substance, the former president provided the emotional current. Moderators pressed both candidates on Trump’s recent indictments and his influence over the Republican Party. Collins, who has cultivated a reputation for independence, walked a familiar tightrope. She acknowledged “serious concerns” about the former president’s conduct but refused to say whether she would support him if he becomes the nominee.

“I evaluate every candidate on their merits,” she said. “Maine voters know I vote my conscience, not a party line.”
Jackson seized the ambiguity. “That is not an answer, Senator. That is a calculation,” he shot back. He argued that Collins’s refusal to draw a bright line makes her complicit in the erosion of democratic norms. The challenger tied the former president’s rhetoric directly to the rise in political violence and threats against election officials, asking the audience whether they wanted a senator who stands apart or one who stands aside.
The moment crystallised the central tension of Collins’s campaign: her brand of pragmatic independence versus the demand for moral clarity from a Democratic base energised by opposition to Trumpism.
Jackson’s Populist Pitch vs. Collins’s Institutional Defence
Beyond the headline clashes, the debate revealed two competing theories of representation. Jackson, the former logger and current President of the Maine Senate, leaned heavily into his biography. He spoke of negotiating labour contracts and fighting for rural broadband, framing his candidacy as a continuation of that work. His answers on prescription drug prices and housing shortages were peppered with references to specific towns—Aroostook, Washington County—signalling a ground game built on retail politics.
Collins leaned on her 26-year record. She cited her role in crafting the bipartisan infrastructure law and her work on the Senate Intelligence Committee. When Jackson attacked her vote for the 2017 tax cuts, she cited the child tax credit expansion she secured in the subsequent negotiation. It was a masterclass in legislative process, but it risked sounding like a resume recitation in a cycle where voters often crave disruption.
The contrast was starkest on abortion. Collins reiterated her support for codifying Roe v. Wade but defended her votes to confirm Justices Gorsuch and Kavanaugh, insisting she was assured they would respect precedent. Jackson called the distinction “a distinction without a difference” for the women of Maine who have lost access to care.
The Final Stretch
With two weeks until Election Day and one debate remaining, the race remains a toss-up. Recent polling shows a statistical dead heat, with undecided voters concentrated in the state’s vast Second Congressional District. Both campaigns recognise that turnout—not persuasion—will likely decide the outcome.

Collins’s path relies on splitting the ticket: convincing Biden voters to cross over for her. Jackson’s path requires maximising Democratic turnout in Portland and Bangor while holding losses in the north to a minimum. Tuesday’s debate gave each candidate the soundbites they needed for closing ads. Whether it moved a single voter remains the question that will be answered on November 5.
Why it Matters
This race is a microcosm of the national struggle for the Senate’s soul. Collins represents a vanishing breed of Republican—pro-choice, infrastructure-focused, institutionally loyal—while Jackson embodies the labour-left resurgence in rural America. The outcome will not only determine the 60-vote threshold for legislation but signal whether the Republican Party’s future lies in the centre or the fringe. For Maine, a state that prides itself on political independence, the choice is existential: reward seniority and bipartisanship, or embrace a populist challenge that demands the party pick a side.
