1/7: Rep. Mike Johnson, Liz Cheney, Gov. Ron DeSantis, Sen. Chris Van Hollen

House Speaker Mike Johnson says House GOP won't back more border funds without policy changes. "Have to be prepared" to defeat Trump at ballot box despite Supreme Court case, Liz Cheney says. Themes of 2024 election taking shape as Iowans prepare for caucus. Ron DeSantis says 2024 race will be "really nasty election" if therace is about Trump. Sen. Chris Van Hollen says situation at Rafah crossing is a "24/7 humanitarian crisis." Reporter's notebook: Can the U.S. balance security risk with staying a nation of immigrants?