Supporting or opposing former President Donald Trump has a causal effect on the perceived ideology of Republican candidates, according to new findings published in American Politics Research. The new study indicates that pro-Trump Republicans tend to be viewed as more “conservative” than anti-Trump Republicans even when policy issues are held constant. “I’ve been interested in ideological labeling since the first day I started graduate school,” explained study author Karyn A. Amira, an associate professor of political science at the College of Charleston. “When Donald Trump became president an…