The objection of a single Republican senator thwarted the plans of Hillary Clinton to be confirmed as U.S. secretary of state on Tuesday.

Just after 3 p.m. ET, the U.S. Senate swiftly endorsed six members of President Barack Obama's cabinet, but put off a vote on Clinton's confirmation for one day because Republican John Cornyn of Texas objected to a unanimous voice vote in her case.

Cornyn said he continues to have concerns over non-Americans who might be making large donations to the charitable foundation run by Clinton's husband, former president Bill Clinton.

That means a roll-call vote to confirm Hillary Clinton as Obama's foreign envoy will be held on Wednesday.

Jim Manley, a spokesman for Senate Majority Leader Harry Reid, predicted earlier Tuesday that "she will receive overwhelming bipartisan support" at that time.

The cabinet members confirmed Tuesday were:

  • Steven Chu, energy secretary.
  • Tom Vilsack, agriculture secretary.
  • Arne Duncan, education secretary.
  • Ken Salazar, interior secretary.
  • Janet Napolitano, secretary of homeland security.
  • Peter Orszag, head of the White House budget office.

Last week, the U.S. Senate foreign relations committee voted 16-1 to endorse Clinton as the next secretary of state. A Republican senator from Louisiana on the committee cast the only vote against her nomination.

Clinton was Obama's chief rival during the Democratic presidential primary.

With files from the Associated Press