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AP file photo

Cigna is suing Anthem to halt its merger, and it's demanding Anthem pay the $1.85 billion termination fee as well as $13 billion in damages that include "the amount of premium that Cigna shareholders did not realize as a result of the failed merger process."

A federal judge ruled last week that the Anthem-Cigna transaction was anticompetitive, particularly for people who get their health insurance through big national employers, and Anthem had intended to file an appeal. Now, Anthem will have to fight its own merger partner in court. Anthem said Cigna does "not have a right" to kill the deal.

This break-up is a lot less amicable than the deal between Aetna and Humana. Those two insurers mutually terminated their merger earlier today.

Why this matters: Anthem and Cigna have disliked each other from the start, when Cigna CEO David Cordani demanded he become the top executive of the combined company but got no such assurances. The legal teams on both sides also had multiple quibbles. It's only going to get messier and add more legal costs to the growing tab associated with the health insurance mega-mergers. And it's all coming at a time when Congress is trying to dismantle Obamacare, which would disrupt both companies.

Go deeper

Biden's pick to lead major banking regulator drops out

Saule Omarova, nominee for Comptroller of the Currency, at a confirmation hearing on Nov. 18. Photo: Anna Moneymaker/Getty Images

President Biden's pick to head one of the country's most powerful banking regulators is dropping out of consideration for the post, according to a statement from Biden that accepted the withdrawal.

Why it matters: Saule Omarova, nominated to lead the Office of the Comptroller of the Currency, faced a tough path to confirmation — with opposition from Republicans and moderate Democrats.

Judge temporarily blocks Biden vaccine mandate for federal contractors

Photo: Chip Somodevilla via Getty Images

A federal judge on Tuesday temporarily blocked President Biden's vaccine mandate for federal contractors nationwide.

Why it matters: It's the latest setback in the Biden administration's rollout of COVID-19 vaccine requirements. Federal judges in two states temporarily barred the administration from enforcing mandates for millions of workers last week.

Biden threatens Putin

Photo: Kremlin Press Office/Handout/Anadolu Agency via Getty Images

In a video call that lasted for just over two hours on Tuesday, President Biden warned Russian President Vladimir Putin that if Russia invades Ukraine the U.S. will impose unprecedented sanctions and provide additional weaponry to the Ukrainians, national security adviser Jake Sullivan said.

Why it matters: Russia's military activity on the border with Ukraine has triggered alarms from the U.S. and its European allies of a potential large-scale Russian invasion in early 2022. Sullivan said Biden made clear to Putin that, "things we did not do in 2014, we are prepared to do now."