Fox News host Stuart Varney said Monday that the Republican Party is growing nervous about the possibility of a major Democratic victory in the upcoming midterm elections. Should Democrats flip one or both chambers of Congress, Varney warned, President Donald Trump's agenda would be halted — and he could even face impeachment.

"With just over two months to the midterms, the Republicans are getting nervous," Varney said. "What if the Democrats win back control of Congress? Worst case: if the left takes the House and the Senate, no wonder the Republicans are nervous. A complete takeover would bring serious trouble to the president's agenda."

According to Varney, "A Democrat Congress would end the president's ability to create new legislation. And he loses the power of the purse, so his policies would be undermined because Congress would refuse to fund his priorities. His foreign policy would also be challenged. Congress controls military spending and arms sales. Israel would likely be cut off. And the Pentagon would have no chance of a budget that meets its current needs. And what do you think the Democrats would do with the committees that they would now chair? They would set the agenda in every area of policy, from taxes to education to immigration. That is the worst case scenario: a full-scale political reversal."

Varney's framing tracks the actual distribution of power in the U.S. system. Under the Constitution, Congress holds the appropriations power, meaning no federal spending — including military aid and Pentagon budgets — can proceed without lawmakers' approval. Impeachment, meanwhile, begins exclusively in the House, which also controls the committee chairs and subpoena power that shape congressional investigations of an administration. Democrats currently hold enough House seats to bring articles of impeachment against a president without Republican support, though conviction requires a two-thirds vote in the Senate. During Trump's first term, the Democratic-controlled House voted to impeach him twice, and the Senate acquitted him both times.

In Varney's view, the blow to Republicans would be softened somewhat if the party "just" lost control of the House. He argued that Trump could still advance policy through executive action and negotiation, and could continue to rely on a Republican-held Senate. Even so, the situation would remain damaging for the GOP, because "the House would still control the money, and they would be in a position to open a series of investigations designed to embarrass the administration, and hold it up. That could even mean firing up an impeachment."

Varney's warning to Republicans comes as a wave of polls suggests Democrats will make major gains in the midterms amid growing anger over Trump's spiraling war with Iran, a disastrous economy, and corruption. Recent polling shows Democrats holding historically high leads, with surveys indicating that voters believe the party is better suited to handle the economy.

At the same time, groups that were essential to Trump's winning 2024 coalition have been breaking away. A new poll found that Gen Z voters — who were key to his election — show the lowest level of support for Trump of any age group, with 31 percent of those who voted for him saying they regret their vote.

Facing numbers like these, Varney warned Republicans that the party has "got to be honest, and that means facing up to the consequences of losing." If Democrats flip Congress, Varney said, "Trump's presidency will be stuck in lame-duck land. He will have taken Trumpism about as far as it can go under his leadership."