President Donald Trump’s endorsement has played a significant role in the Republican Party’s primary elections during the 2026 cycle. A large number of candidates backed by Trump have emerged victorious in GOP primaries. However, his influence faced challenges recently.
Notable Primary Defeats
Representative Andy Ogles from Tennessee, despite Trump’s endorsement, lost the Republican primary for the state’s newly redrawn 5th Congressional District. This was a notable deviation from Trump’s usual success rate, where 97 percent of his endorsed candidates won through early July 2026. Ogles was considered a close ally of Trump, yet lost to former Tennessee Agriculture Commissioner Charlie Hatcher, who had the backing of Tennessee Governor Bill Lee.
Amir Hassan’s Surprising Loss
Another Trump-backed candidate, Amir Hassan, lost the Republican primary in Michigan’s 8th District to Thomas J. Smith. This outcome surprised many since Smith had suspended his campaign weeks prior but managed to win with 50.4 percent of the vote. Hassan, who received Trump’s endorsement in July, secured only 33.2 percent of the vote.
Other Key Defeats
Phil Berger, a prominent Republican lawmaker in North Carolina, lost the nomination for the state’s 26th Senate District to Sheriff Sam Page. Georgia Lieutenant Governor Burt Jones lost the Republican gubernatorial runoff, a notable defeat for Trump in a battleground state.
Brenda Wilson, a Vigo County Council member, lost her Indiana Senate bid. Bruce Borders, an Indiana House member since 2014, also failed to secure renomination. Texas Agriculture Commissioner Sid Miller, an incumbent since 2015, was another Trump-endorsed candidate who lost his primary race.
Representative Randy Feenstra of Iowa suffered a defeat in the state’s gubernatorial primary, marking a significant moment in Republican competition. In South Carolina, Lieutenant Governor Pamela Evette won the initial primary but lost the runoff to Attorney General Alan Wilson, who later secured Trump’s endorsement alongside Evette.
Jon Maples’ Election Challenges
Jon Maples, who previously ran to represent District 87 in Florida, where Trump’s Mar-a-Lago estate is located, won the primary but lost the general election narrowly to Democrat Emily Gregory. Maples is running again in the regular election, with the primary scheduled for August 18.
Endorsement Impact
Despite these setbacks, Trump’s endorsement remains influential across multiple races. His backing contributes to many Republican victories, though not an assurance of success. The defeat of Ogles and others reminds us that even a powerful endorsement may not guarantee nomination victories in competitive races.

Trump Administration Plans Major Reforms to Head Start Program
Legal Debate Over Section 301 Tariffs
Controversy Over Prosecution of Church Protesters in St. Paul
Trump’s Influence Tested in Tennessee Primaries
Trump and Rosie O’Donnell Rekindle Long-Standing Feud
Trump Administration Refunds $100 Billion in Tariffs Following Supreme Court Ruling