Donald Trump supporters in Alabama are frustrated, McClatchy's Katie Glueck reports. Venting Thursday night during a campaign rally for conservative Judge Roy Moore, members of Trump's base expressed fear that their president -- who's backed Moore's opponent, establishment candidate U.S. Senator Luther Strange, in next week's Republican runoff -- is being misled. With Moore leading in polls, Tuesday's election has the Beltway watching in fear over future grassroots insurgent candidates who may challenge the GOP establishment.