Former President Donald Trump took a dig at his Republican opponent Nikki Haley's husband during a rally in Conway, South Carolina on Saturday. While recounting a meeting with Haley at his Mar-a-Lago residence, Trump questioned the whereabouts of her husband, who is currently on military deployment overseas.

During the rally, Trump addressed the crowd with rhetorical and probing questions regarding Haley's husband, asking, "Where's your husband? Oh, he's away. He's away. What happened to her husband? What happened to her husband? Where is he? He's gone! He knew. He knew."

In response to Trump's remarks, Haley, speaking at a rally in Gilbert, South Carolina, expressed her pride in her husband's military service. She emphasized the sacrifice made by military spouses and stated, "If you mock the service of a combat veteran, you don't deserve a driver's license, let alone being president of the United States."

Directly addressing Trump, Haley issued a challenge and argued that anyone who consistently disrespects military families' sacrifices should not be a commander in chief. She did not speculate on the meaning behind Trump's comment, "He knew."

Haley's husband, Michael Haley, also responded to Trump's remarks on social media by posting a meme that criticized the intelligence of those in leadership positions. Michael Haley, a commissioned officer, has been on a yearlong deployment in Africa with the South Carolina National Guard since last June.

This is not the first time Trump has targeted Nikki Haley's family during the campaign. In a speech last month, he insinuated that if she had a commanding lead in the GOP primary, Democrats would accuse her of having an affair.

As the primary focus shifts to South Carolina, Haley's campaign has been taking a stronger stand against Trump. Earlier on Saturday, her campaign unveiled a mobile billboard featuring photos of Trump and Democratic candidate Joe Biden, labeling them as "Grumpy Old Men."

Haley, while introducing her new campaign bus in Newberry, South Carolina, criticized both Biden and Trump, calling for new generational leadership. Responding to an audience member's comment about "grumpy old men," Haley reiterated her belief that better options are needed for leadership.

Currently, Trump holds a substantial lead over Haley in polling for the South Carolina primary. As the campaigns intensify, it remains to be seen how this exchange will impact the race and public opinion.