The White House says Ivanka Trump and husband Jared Kushner were not at Thursday's Rose Garden announcement of President Trump's intention to withdraw from the Paris climate agreement because they were celebrating a Jewish holiday.

According to a White House official, the two attended synagogue in the morning for the Jewish holiday of Shavuot and Ivanka went home to celebrate the holiday with her children. Kushner did return to work but was said to have had a longstanding meeting with "someone from out of town" that had been scheduled.

While Ivanka Trump has been a staunch supporter of the climate agreement, which aims to curb greenhouse gas emissions in an effort to slow the progress of global climate change, the White House insists her husband and top Trump aide was fully involved in the process behind the announcement.

Amid reports that Ivanka, along with Secretary of State Rex Tillerson and Defense Secretary James Mattis, placed "intense" pressure on the president to not withdraw from the climate accord, the president announced Thursday that he planned to have the U.S. withdraw from the agreement.