A low-key primary election day in Colorado took on an even more muted tone Tuesday: Destructive wildfires are dominating the public’s attention, and candidates were loath to campaign amid the smoke and flames. Republican Rep. Doug Lamborn of Colorado Springs, the only sitting member of Congress from Colorado facing a primary challenge, spent the days before the election meeting with firefighters and seeking federal resources to battle a quick-moving fire that forced thousands to evacuate the Manitou Springs area. Lamborn’s opponent, Colorado Springs businessman Robert Blaha, canceled get-out-the-vote phone calls for all of El Paso County, which makes up some 70 percent of the voters in the 5th Congressional District. “Now is a time to respect other priorities for sure,” Blaha spokeswoman Tamra Farah said.