Photo: George Rose/Getty Images

Twenty-three states joined California in suing the Environmental Protection Agency for stripping away an Obama-era waiver that allows the state to set strict emissions standards on cars and trucks, the California's attorney general's office announced Friday.

The big picture: This is the latest in a high-stakes battle between California and the Trump administration over the fuel-efficiency of cars in America, says Axios' Amy Harder. Automakers — and drivers — are caught in the middle and likely stuck with significant uncertainty for years as these legal and regulatory fights wear on.

  • One of the standards at the center of the latest lawsuit requires the sale of an increasing number of electric or other zero-emission vehicles.
  • Another addresses standards for tailpipe emissions. California has stricter qualifications than the EPA requires nationally.

Between the lines, via Axios Amy Harder: If you're losing track of all the lawsuits, you're probably not alone. This lawsuit is separate from another suit filed in September, also by California and a similar set of states,

  • That suit was filed against the National Highway Traffic Safety Administration"to undo a parallel determination that federal law bars California from setting tailpipe emission standards," Reuters writes.

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"I stood up for that": Pope Francis voices support for same-sex civil unions

Pope Francis at St. Peter's Basilica in Vatican City. Photo: Vatican Pool - Corbis/Corbis via Getty Images

Pope Francis voiced his support for same-sex civil unions for the first time as pope in the documentary “Francesco,” which premiered Wednesday at the Rome Film Festival, per the Catholic News Agency.

Why it matters: The pope’s remarks represent a break from the position of the Roman Catholic Church, which has long taught that homosexual acts are “intrinsically disordered" and contrary to natural law.

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Countries waiting to see if Trump wins before moving on Israel normalization

The delegation lands at Israel's Ben Gurion airport. Photo: Jack Guez/AFP via Getty

The White House is attempting to leverage momentum from Israel's normalization deals with Bahrain and the UAE to get more Arab countries on board before the U.S. election.

Driving the news: President Trump wants Sudan's removal from the U.S. state sponsors of terrorism list to be accompanied by a pre-election announcement on Israel.

Poll: 92% of battleground state voters are "extremely motivated to vote"

Voters stand in line at the Metropolitan Multi-Services Center in Houston, Texas, on Oct. 13. Photo: Mark Felix for The Washington Post via Getty Images

91% of likely voters nationally say they are "extremely motivated to vote," including 92% in battleground states Arizona, Florida, Michigan, North Carolina, Pennsylvania and Wisconsin, according to a Change Research/CNBC Poll.

Why it matters: The 2020 election could see record-breaking levels of voter turnout. Voters last week cast ballots at nearly five times the rate they did at this point in the 2016 election, per the U.S. Elections Project. Over 39 million ballots have been cast in early voting states as of Wednesday.