Republican presidential candidate Donald Trump has said he will accept the result of the US election "if I win".
But he added he reserved the right to file a legal challenge.
His comments came after he refused to promise during the final presidential debate in Las Vegas that he would trust the outcome on November 8th if he loses.
The Republican nominee had told the audience he would keep them "in suspense".
Donald Trump promised to rid America of "bad hombres" coming over the border from Mexico.
Speaking at the final presidential debate against Hillary Clinton, Trump reiterated he would "build the wall" between the two countries in order to stop the flow of drugs across the border.
The Republican said one of his first acts as president would be to remove drug lords from America.
"We have some bad hombres here and we are going to get them out", Trump said of illegal immigrants.
Donald Trump has refused to say if he would accept the result of the election if he loses, but could he challenge it and what would happen?
During the debate Trump said "bad hombres" needed removing from the US and branded Clinton a "nasty woman". Both sparked jokes on Twitter.
The Republican refused to say whether he will accept the result of the presidential election, saying: "I will look at it at the time."