Photo: David Dee Delgado/Getty Images

New Jersey held its primary election on Tuesday, wherein most voters were expected to cast ballots by mail amid the coronavirus pandemic.

The big picture: Though former Vice President Joe Biden and President Trump both secured enough delegates to win their respective nominations, there are down-ballot primaries to keep an eye on.

Races to watch: In the state's 2nd congressional district, five Democrats are vying for their party’s nomination to challenge Rep. Jeff Van Drew, who in 2019 voted against impeaching Trump as a Democrat, and later switched to the Republican Party.

    • Van Drew has received Trump's endorsement for the Republican primary and is not expected to confront any serious threats in the contest.

Results: Sen. Cory Booker won New Jersey’s Democratic Senate primary, according to AP. He faced local activist Lawrence Hamm.

Between the lines: Trump‘s attacks on mail-in voting have generated suspicions among Republican voters toward absentee ballots, worrying Republican strategists, who believe it could hurt their own candidates, the Washington Post reports.

What's next: Polls closed at 8 p.m. EST, but results are not expected Tuesday evening.

Go deeper

50% of Americans expect to know who won within a day or two of Election Day

Illustration: Sarah Grillo/Axios

82% of voters from both parties say it is at least somewhat important to know who won the presidential election within a day or two of Election Day, yet only half expressed confidence that this will happen, according to a Pew Research Center study.

Why it matters: The 2020 election is expected to set records for the number of mail-in ballots cast due to the pandemic. Depending on the margins in key swing states, it's possible that the winner of the election will not be known until mail-in ballots are counted.

Oct 15, 2020 - Politics & Policy

Obama: If Biden's elected, "he's gonna have to rebuild" the State Dept

Former President Obama addresses the virtual Democratic National Convention on Aug. 19. Photo: DNCC via Getty Images

Former President Obama said Joe Biden would "have to rebuild" the State Department if he were elected next month, as he lambasted his successor and the Trump administration on the "Pod Save America" podcast Wednesday.

Details: Obama praised Biden for his "restraint and humility" and confidence in diplomacy. "[T]hat instinct that I think is going to trickle out, partly because he's gonna have to rebuild a State Department where some of the best people have been driven out systematically because they weren't willing to tow Trump's ideological agenda," he said.

The top Republicans who aren't voting for Trump in 2020

Photo: Brendan Smialowski/AFP via Getty Images

Maryland Gov. Larry Hogan said last week that he cannot support President Trump's re-election.

Why it matters: Hogan, a moderate governor in a blue state, joins other prominent Republicans who have publicly said they will either not vote for Trump's re-election this November or will back Biden.