Congressional operations face mounting difficulties as vacant seats and poor attendance rates affect both chambers, according to multiple reports. The attendance issues have intensified challenges created by already narrow margins in both the House and Senate.

In Texas, the Republican Senate primary has taken a significant turn after former President Donald Trump endorsed Ken Paxton over incumbent Senator John Cornyn. The endorsement has complicated what was already expected to be a competitive re-election race for Cornyn, though the senator has indicated he will continue his campaign through the runoff.

Meanwhile, Representative Thomas Massie of Kentucky addressed his political future following a primary loss to a Trump-backed challenger. Speaking on NBC's "Meet the Press," Massie said he would "stay engaged" in politics and declined to rule out a potential 2028 run when asked about his future plans.

Massie also offered a warning about his party's electoral prospects, telling the Sunday program that Republicans will be "very vulnerable" in the upcoming midterm elections. His comments come as the GOP navigates internal divisions highlighted by Trump's continued influence in primary contests.

The combination of operational challenges in Congress and shifting primary dynamics reflects broader tensions within the Republican Party as it approaches the midterm elections. Trump's endorsement pattern continues to reshape traditional GOP hierarchies and create new competitive dynamics in previously safe seats.