Former President Bill Clinton William (Bill) Jefferson ClintonD-Day for Trump: September 29 Trump job approval locked at 42 percent: Gallup If Trump doesn't know why he should be president again, how can voters? MORE sent get-well wishes to former President George H.W. Bush and his wife, who have both been hospitalized.

“41 and Barbara—thinking about you both and sending wishes for a speedy recovery. Love, 42,” Clinton tweeted Wednesday.

41 and Barbara—thinking about you both and sending wishes for a speedy recovery. Love, 42. — Bill Clinton (@billclinton) January 18, 2017

Bush and former first lady Barbara Bush were both hospitalized in Houston, Texas, on Wednesday. The couple will be unable to attend President-elect Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE’s inauguration on Friday.

Bush, 92, is in stable condition after being admitted to an intensive care unit at the Houston Methodist Hospital. Bush was admitted to the hospital to “address an acute respiratory problem stemming from pneumonia,” a spokesman for the couple said in a statement.

His wife was admitted to the hospital Wednesday “as a precaution after experiencing fatigue and coughing,” the spokesman said.

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Despite Clinton beating Bush in 1992, the two have developed a close relationship over the years and partnered on charitable causes.

Former President George W. Bush became the 43rd president following Clinton. Both Clinton and his wife, Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE, the 2016 Democratic nominee, will attend the inauguration this Friday.

In his final press conference Wednesday, President Obama extended his prayers to the Bushes.

"They have not only dedicated their lives to this country. They have been a constant source of friendship and support and good counsel for Michelle and me over the years," Obama said."They are as fine a couple as we know and so we want to send our prayers and our love to them. Really good people."