Get ready to hate Congress (even more)

House Speaker Nancy Pelosi, D-CA, speaks during a press conference at the US Capitol in Washington, DC on September 8, 2021. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)
House Speaker Nancy Pelosi, D-CA, speaks during a press conference at the US Capitol in Washington, DC on September 8, 2021. (Photo by MANDEL NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images) · MANDEL NGAN via Getty Images

Since it worked so well the last time, Congress is about to flirt once again with the prospect of a U.S. government shutdown, followed by an ignominious and totally unnecessary default on the nation’s debts.

Yes, you’ve heard this before. Yes, it’s tiresome and foolish. But it’s happening again anyway, and financial markets could bear some pain before the whole thing gets settled toward the end of the year.

The U.S. government has reached the legal limit of its ability to borrow money, which happens every few years because a 1939 law requires Congress to approve the aggregate amount of debt the Treasury Department can issue. Treasury is now using “extraordinary measures” to pay everything the government owes, including Social Security payouts, contractor liabilities, federal retiree benefits and interest on government securities. But that can’t go on forever, and by mid- or late October Treasury will reach “X Date,” when it runs short of the money it needs to pay every debt. That would mark the moment of default, if Congress does nothing.

Congress used to approve borrowing-limit increases without much fanfare, but partisan hostility has now made this routine function an episodic showdown in which each party tries to blame the other for a catastrophe that nearly happens. Congress could abolish the debt ceiling, and give Treasury unlimited borrowing authority, eliminating the need for this periodic bickerfest. But Congress doesn’t want to cede its authority to screw things up.

WASHINGTON, DC - SEPTEMBER 14: Senate Minority Leader Mitch McConnell (R-KY) walks to the Senate Chambers at the U.S. Capitol on September 14, 2021 in Washington, DC. Congress is working on a final passage of the $3.5 trillion reconciliation package. (Photo by Kevin Dietsch/Getty Images)
WASHINGTON, DC - SEPTEMBER 14: Senate Minority Leader Mitch McConnell (R-KY) walks to the Senate Chambers at the U.S. Capitol on September 14, 2021 in Washington, DC. Congress is working on a final passage of the $3.5 trillion reconciliation package. (Photo by Kevin Dietsch/Getty Images) · Kevin Dietsch via Getty Images

In normalish times, Republicans and Democrats quarrel over who’s responsible for runaway federal borrowing (answer: both parties) and then agree to let the government borrow more before things get out of hand. This is not a normalish time, however. Goldman Sachs argues that complete Democratic control of both the White House and Congress, combined with the Democrats’ ambitious legislative agenda, raises the odds of a breach that could cause real economic damage. Many prior agreements to raise the debt ceiling occurred when control of Congress was split and neither party foresaw any political gain from a prolonged impasse. But Democrats’ narrow majorities now could, ironically, gunk up negotiations even though Democrats want to extend the borrowing limit.

The sinkhole, as usual, is the Senate filibuster that requires 60 votes for a bill to pass. With a bare, one-vote majority in the Senate, Democrats would need 10 Republicans to join them in a bipartisan vote to extend the borrowing limit. There have been bipartisan votes to do this before, so why the trouble this time? Because Democrats plan to use the arcane “reconciliation” process, which requires only a simple majority in the Senate, to pass a huge tax and spending bill enacting many of President Biden’s campaign promises—with zero Republican support.