The comment has become a major talking point in the lead-up to the state's special election on November 27, where Hyde-Smith faces Democrat challenger Mike Espy - a former secretary of agriculture and congressman who in 1986 became the first African-American to represent MS at the federal level since Reconstruction - in one of the closest senatorial races in the state in recent memory.
The election became more competitive after a video emerged earlier this month of Ms Hyde-Smith telling a supporter: "If he invited me to a public hanging, I'd be on the front row". Tuesday's victor will serve the last two years of Cochran's six-year term.
Looking to bolster its Senate majority, the GOP wheeled out its biggest gun Monday in MS as President Trump rallied to bolster Sen.
"We can't afford a senator who embarrasses us and reinforces the stereotypes we've worked so hard to overcome", the ad says.
The matter was under investigation, he said, adding that he did not know what was on the signs.
"She produces like few produce", Trump said. "We have been sensitive to race relations in this state", Bryant said, Think Progress reported. Hyde-Smith remarked that she would go to a "public hanging," a comment she said was made in jest and eventually apologized for.
After initially refusing to back down from her remarks, and as the national firestorm grew, she sought to limit the damage by offering a qualified apology during a recent debate to those who were offended, while accusing her opponents of twisting her words.
A MS official says two nooses and six signs were found on the grounds of the MS state Capitol. Espy's criminal indictments while agriculture secretary, for which he was acquitted at trial, and his lucrative work as a lobbyist for a former president of the Ivory Coast in western Africa now on trial in the Hague for alleged crimes against humanity.
Trippi said Espy's formula for victory is a big Democratic turnout, particularly African-Americans, and winning about 25 percent of white voters by peeling off some Republicans who are younger, female or college-educated.
Democrats are hoping to pull off an Alabama-style upset in the state after a series of missteps from Hyde-Smith.
The imagery was first obtained by a WLBT reporter, who received a call in the morning about the nooses and then notified Capitol Police.
"She certainly didn't mean that and it was taken a certain way, but she certainly didn't mean it and as I understand it, she's already apologized and very strongly", Trump said.