Allergan tried a new way to protect a lucrative drug. Photo: Jean-Pierre Clatot/AFP via Getty Images

A federal appeals court Friday delivered a blow to drug maker Allergan, saying in a ruling the Saint Regis Mohawk Tribe cannot assert its "tribal sovereign immunity" to cast aside patent challenges to one of Allergan's drugs. Allergan declined to comment.

Flashback: Last year, Allergan transferred the patents of its blockbuster dry eye drug, Restasis, to Saint Regis and agreed to pay the Native American tribe money. In return, the tribe would attempt to kill patent challenges from generic drug companies that wanted to make cheaper versions of the drug.

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Updated 3 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Politics: Pence chief of staff Marc Short tests positive for coronavirus — COVID-19 looms over White House Halloween celebrations
  2. Health: Fauci says maybe we should mandate masks if people don't wear them — America was sick well before it ever got COVID-19
  3. World: Polish President Andrzej Duda tests positive for COVID-19.

Pence chief of staff Marc Short tests positive for coronavirus

Marc Short with Katie Miller, Vice President Pence's communications director, in March. Photo: Doug Mills/The New York Times via Reuters

Marc Short, Vice President Mike Pence’s chief of staff, tested positive for the coronavirus Saturday and is quarantining, according to a White House statement.

Why it matters: Short is Pence's closest aide, and was one of the most powerful forces on the White House coronavirus task force.

5 hours ago - World

Opposition leader Leopoldo López flees Venezuela

Venezuelan opposition politician Leopoldo López outside the Spanish embassy in Caracas, in 2019. Photo: Juan Barreto/AFP via Getty Images

Leopoldo López, a former political prisoner and prominent Venezuelan opposition leader, has left the country, his Popular Will party confirmed in a statement Saturday.

Why it matters: He's been an influential force in the push to oust President Nicolás Maduro's regime and a mentor to opposition leader Juan Guaidó. He'd been in the Spanish ambassador's Caracas residence since escaping house arrest in April 2019 following a failed military uprising.