Washington, Nov. 21 -- : An increasing number of Republican lawmakers are pushing back on US President Donald Trump's tactics to overturn election results showing his defeat against President-elect Joe Biden, and have raised concern that his tactics could hurt the COVID-19 crisis response and undercut a key pillar of democracy.

Even though party leaders and a vast majority of congressional Republicans continue to back Trump's efforts to challenge the results, more Republicans have spoken out against his claims in recent days, reported CNN.

Senator Lamar Alexander of Tennessee, Representative Kay Granger of Texas, and Representative Fred Upton of Michigan, all senior Republicans, have each raised concerns in recent days about the transitio...