The Alabama senator says Republicans "have a second chance" on trade.
The bank is set to expire at the end of the month.
The panel said media reports have "directly impacted the committee's investigation."
They say the Internet has made a Commerce Department agency obsolete.
The Republican called for "a little more trust" ahead of trade votes.
The presidential candidate wants to reduce State Department funding every 30 days.
Sanders said lawmakers should repeal a "disastrous law" passed as part of a spending bill.
Martin Matishak 06/22/15 10:42 AM EDT
Democrats want to raise non-defense spending levels as well.
Senators are expected to vote on two nomination's Monday evening.
Trade and spending fights will top the agenda on Capitol Hill.