WASHINGTON - Republican presidential candidate Nikki Haley turned a spotlight on Donald Trump's mental fitness Saturday, after the former president falsely accused her of failing to stop the violent assault on the US Capitol on January 6, 2021. Trump, speaking Friday at a campaign event days ahead of New Hampshire's first-in-the-nation primary election, appeared to confuse Haley with then House speaker Nancy Pelosi. Referring to the January 6 insurrection by a mob of his supporters, Trump, after saying his rival's name repeatedly, told a crowd: "Nikki Haley is in charge of security. We offered her 10,000 people -- soldiers, National Guard, whatever they want -- they t...Keep on reading: Nikki Haley questions Trump’s mental fitness after gaffe