From USA Today in February:
Senators who are considering [Treasury Secretary Jack] Lew's nomination have given him 444 written questions to answer -- more than the six previous Treasury nominees combined.Of course, Republican Senators voted to add most of that debt by supporting policies of the Bush-Cheney administration. But now that we’re in the Obama administration, suddenly they showed a concern at a level not seen for twenty years combined.
Most of those questions -- 395 -- came from Republicans.
(If you count multi-part questions as separate questions, Lew has to provide nearly 700 answers to the Senate.) . . .
Lew's 444 questions are more than double the previous Treasury record of 165 queries posed to another Obama nominee, Tim Geithner; the Senate eventually confirmed Geithner.
Geithner and previous Treasury nominees from both parties -- Henry Paulson, John Snowe, Paul O'Neill, Lawrence Summers and Robert Rubin -- received a total of 405 questions, according to numbers compiled by Democrats.
Republicans did not challenge the numbers, saying they have a lot of questions about how Lew conducted his job as budget director and the growth of the federal debt.