Midterms 2026: Is this the biggest defeat in history for the Republicans?

A rout yes, but can we talk about a record? The Republicans therefore lost the House of Representatives and the Senate during the midterms and at least seven senatorial seats flipped to the Democrats, notably in Texas, Kansas and South Carolina. For Donald Trump, the disavowal is brutal. But to measure this defeat, we must take into account the number of seats lost, the fall of conservative strongholds or the consequences on the end of the presidential term.

And in view of this, the Republican archives are full of even darker evenings. Official data from the House of Representatives lists 96 seats lost in the 1874 midterms, under Ulysses S. Grant. In 1890, under Benjamin Harrison, the party abandoned 93, falling to 86 representatives out of 332. It then lost more than half of its elected representatives. These precedents set the bar very high for a “worst defeat in history”. Especially since the Chamber had fewer members than today. Compared to its size, the Republican hemorrhage would be even more spectacular.

The record of records dates back to 1958

The 20th century also offers comparisons. According to the American Presidency Project, Republicans lost 48 seats in the House and 13 in the Senate in 1958, under Dwight Eisenhower. By 1974, after Watergate and the resignation of Richard Nixon, they had abandoned 48 representatives and five senators. With seven senatorial seats already passed to the Democrats in 2026, the sanction therefore remains lower than that of 1958 in this chamber. Even Ronald Reagan's setback in 1986, with eight senatorial elections lost, constitutes a threshold even higher than the provisional results, pending the results of Mississippi and Alaska which could change the situation.

In the House of Representatives, the classification remains open. Democratic leader Hakeem Jeffries expects at least 255 elected officials for his party, AP News reported this Wednesday. However, a political forecast does not constitute a definitive statement. And the total number of Democratic elected officials does not correspond to the number of seats wrested from their opponents. Another benchmark: in 2018, during Donald Trump's first term, the Republicans lost 41 seats in the House, according to the American Presidency Project. However, they gained two seats in the Senate. This time, neither room cushions the shock.

An earthquake linked to conquered territories

But this feeling of earthquake is mainly due to the conquered territories. CNN, taken up by KESQ, recalls that Kansas had not elected a Democratic senator since 1932. In Texas, James Talarico won a Senate seat while Gina Hinojosa defeated Governor Greg Abbott. The Democrats had not won a statewide election since 1994. The defeat therefore goes beyond the usual contested constituencies. It reached conservative strongholds and won several candidates supported by Donald Trump, including Ken Paxton in Texas. It is undoubtedly this disrupted electoral map which gives the election its exceptional dimension.

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