Republican senators have voiced growing concerns over Defense Secretary Pete Hegseth’s leadership of the U.S. armed forces as the ongoing war with Iran shows no signs of ending. During a July 27, 2026, Senate hearing focused on the administration’s request for emergency Defense funding, lawmakers highlighted several issues undermining confidence in Hegseth.

Some GOP members criticized the administration for failing to anticipate the prolonged closure of the Strait of Hormuz, a strategic shipping lane whose disruption since February has significantly increased oil and gas prices. Additionally, they pointed to a lack of preparedness for Iran’s willingness to strike neighboring allies including Jordan, Kuwait, and Saudi Arabia.

The conflict’s recent expansion to the Red Sea, where Iranian-backed Houthi militants targeted Saudi oil shipments, further alarmed Republicans who believe the Pentagon was caught off-guard by these developments. One anonymous Republican senator noted “rumblings” about these intelligence and strategic failures.

Concerns were also raised about the financial toll of the conflict. Defense Secretary Hegseth stated last week that costs had reached $37.5 billion, but independent analysts such as Moody Analytics estimate the true cost to be at least $132 billion. Some senators feel the administration did not fully prepare them for these expenses.

Senator Susan Collins expressed her distress at the hearing, stating, “I find this deeply troubling. These are men and women who volunteered to serve our country and swore an oath to support and defend our Constitution.”

The hearing also underscored the importance of Senator Thom Tillis’s upcoming vote on a budget resolution before the August recess, which would pave the way for a $95 billion reconciliation package including $73 billion in funding for the Pentagon and U.S. intelligence agencies.

Meanwhile, Senate Minority Leader Mitch McConnell (R-Ky.) has been absent from voting since June 11 due to health issues.

Some Republicans speculate that senior generals who have left the administration might have warned the president about Iran’s capabilities to disrupt ship traffic in the Strait of Hormuz and mobilize allied Houthi militias to threaten shipping lanes through the Red Sea.

Sources