Melania TrumpMelania TrumpJill Biden, Kate Middleton visit school together in first meeting Jill Biden wears 'LOVE' jacket 'to bring unity' to meeting with Boris Johnson White House gets back to pre-COVID-19 normality MORE is sharing a message about her Be Best initiative, as votes continue to be counted in the White House race.

Democratic presidential nominee Joe BidenJoe BidenChinese apps could face subpoenas, bans under Biden executive order: report OVERNIGHT ENERGY:  EPA announces new clean air advisors after firing Trump appointees |  Senate confirms Biden pick for No. 2 role at Interior | Watchdog: Bureau of Land Management saw messaging failures, understaffing during pandemic Poll: Majority back blanket student loan forgiveness MORE took a narrow lead in Pennsylvania on Friday morning, inching him closer to defeating President TrumpDonald TrumpChinese apps could face subpoenas, bans under Biden executive order: report Kim says North Korea needs to be 'prepared' for 'confrontation' with US Ex-Colorado GOP chair accused of stealing more than 0K from pro-Trump PAC MORE.

Shortly after the updated voting results in Pennsylvania were announced, the first lady reflected on her children's wellness campaign, which she launched in 2018, in a Friday tweet:

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The Twitter post marked the first time the public heard from the first lady since Election Day, when she cast her ballot in Palm Beach, Fla.

The Be Best message also came the morning after the president baselessly claimed in a statement to reporters at the White House that the electoral process was "unfair." As Biden closed in on the 270 electoral votes needed to be named president-elect, President Trump claimed, without evidence, that the election was being stolen from him.

A spokeswoman for Melania Trump didn't return ITK's request for comment about the first lady's reaction to the president's remarks.