Nikki Haley questions Trump's mental competence in lead-up to New Hampshire's primary; Deadly Arctic blast impacts much of the United States; Attack on U.S. military base in Iraq raises concerns of wider conflict in region; and more on tonight's broadcast.

Haley under pressure in New Hampshire after DeSantis endorses Trump; Winter storms continue to pummel the U.S.; FAA urging inspection of another Boeing plane model; and more on tonight's broadcast. Authorities in Joliet, Illinois, are searching for 23-year-old Romeo Nance, a suspect they consider armed and dangerous. Seven people were fatally shot at two homes across the street from each other. The Supreme Court will allow the Biden administration to remove razor wire fencing at the border, which Texas officials had installed to stop illegal border crossings. Texas officials put up the razor wire saying the Biden administration is not doing enough to stop the record surge of migrants. For the second time, the U.S. and U.K. have launched strikes against the Houthi militia, who has been terrorizing ships in the Red Sea. U.S. Centcom says they struck 8 Houthi targets inside Yemen.