<p>House Republicans are facing a growing exodus of experienced and talented members that adds up to an alarming political maturity drain. A growing number of their well-respected members are fleeing Congress as the conference pulls further to the right, and the departures are starting to spark worries about a further erosion of GOP lawmakers' appetite for the basic tasks of governing. After a brutal year of their party's shaky stewardship of the House, 21 House GOP lawmakers have already announced their plans to retire at year's end — including five committee chairs. Many of the departing members share a common trait: They’re part of a loose coalition of governing-minded Republicans who are still willing to generally back leadership, support bipartisan deals and even defy former President Donald Trump at times. And while some Republicans have cited personal or health reasons for leaving office, others in the group are blunt as they lament their party’s inflated expectations for what’s achievable when the GOP controls just one half of one branch of the government.</p>