U.S. first lady Melania Trump will join President Donald Trump at his Erie, Pennsylvania, rally on Tuesday evening, according to a White House official. It will be the first lady's first in-person appearance at a campaign event, outside of August's Republican National Convention speech at the White House, in more than a year, when she joined the President last June at the official reelection kick-off rally in Florida.

The first lady is not expected to give solo remarks at Tuesday's Pennsylvania event nor does she have any upcoming appearances or travel related to the campaign on her calendar for the foreseeable future, a source familiar with Trump's schedule told CNN. The election is 15 days away.

Travel restrictions due to coronavirus throughout the last several months, and her own bout with Covid-19, hindered Trump's work schedule, her spokeswoman Stephanie Grisham told CNN. However, the President, vice president and other members of the Trump family have hit the campaign trail.

Melania Trump has not historically been a visible presence on the campaign trail, eschewing appearances while other Trump surrogates crisscross the country. In the entire 2016 election cycle, Trump gave only a handful of solo speeches. Her longest in Pennsylvania, was just five days before the 2016 election, and came after a months' long hiatus from the campaign trail.

"I'm an immigrant, and let me tell you that nobody values the freedom and opportunity of America more than me," said Trump at the time, after an introduction by second lady Karen Pence, an active campaigner in both 2016 and 2020.

In 2016, the most the public saw of their future first lady was her presence at the presidential debates, something Trump is doing this time around, as well. She attended Trump's debate against Democratic rival Joe Biden in Ohio, and she is expected to attend the final 2020 presidential debate on Thursday in Nashville, Tennessee.

If 2016 showed a hesitant potential first-spouse, 2020 is proving Trump remains ambivalent to the barnstorming ways of her stepchildren, all of whom have been hosting campaign events for the last several weeks in key battleground states.

This week, Ivanka Trump will make stops in Michigan, Wisconsin, North Carolina and Florida; Eric Trump heads to New Hampshire and Michigan, while his wife, Lara Trump, a member of the reelection campaign, goes to Nevada and Arizona; Donald Trump Jr. will be at events in North Carolina and Pennsylvania.

The Trump campaign has even tapped Tiffany Trump to host events, her first was this weekend in Tampa, Florida, dubbed "Trump Pride," aimed at the LGBTQ voters. With few big-name Republican surrogates outside of his family, and lack of participation from his wife, Trump's adult children are doing most of the talking to voters, with the President himself committing in recent days to two to three rallies in a 24-hour period.