With no lifeline coming from the divided Congress, Obama and his administration are redoubling their pleas for insurers to shore up the federal health care law and pushing uninsured Americans — especially younger ones — to sign up for coverage. The administration is nervously preparing for its final Obamacare open-enrollment season just a week before Election Day, amid a cascade of headlines about rising premiums, fleeing insurers and narrowing insurance options.

On Monday, Obama met face to face at the White House with leading insurance executives, asking for their continued commitment to the health law despite its recent spate of difficulties. Insurers have come to the White House periodically as the law has rolled out; this time the president made a direct plea for their ongoing support. They in turn pressed their case for steps the administration can still take to strengthen the Obamacare markets.

Notably absent were two of the national insurers that have already bailed on most Obamacare marketplaces — Aetna and UnitedHealth Group.