Rep. Rashida Tlaib, Michigan Democrat, was called out Monday after Palestinian activist Abbas Hamideh, a staunch defender of the terrorist group Hezbollah, posted photos of the two of them posing at her swearing-in ceremony in Detroit. Mr. Hamideh tweeted a photo of himself Saturday with Ms. Tlaib along with the caption, “I was honored to be at Congresswoman @RashidaTlaib swearing in ceremony in #Detroit and private dinner afterward with the entire family, friends and activists across the country.” Critics were quick to point out that Mr. Hamideh, a co-founder of the pro-Palestinian group Al-Awda, which means “right of return,” has...