Haley responds to Trump's barbs with Southern charm
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Trump shared tweets from two senior aides attempting to portray Haley as hypocritical on the issue of Trump releasing his tax returns, invoking her remarks regarding Mitt Romney from 2012.
 
"The people of South Carolina are embarrassed by Nikki Haley!" Trump declared in his own follow-up tweet. Haley responded to Trump with her own tweet stating, "Bless your heart."
The pair have sparred over the past couple of months, including in January when Haley delivered the GOP response to President Obama's State of the Union that focused on Trump's harsh rhetoric.