I do not know if the correct terminology is treason or sedition or both, but if you step back and consider the totality of what he has done, it is clear that he should be removed from office.
He removed missile defense from eastern Europe, he intentionally gave back our battlefield wins in Iraq and Afghanistan, he has stabbed our best allies in the back and embraced our enemies, he tilted the balance of power in the Middle East in favor of our enemies, he armed terrorist organizations, he has crippled our economy with counter-productive tax and fiscal policy, he has weakened our economy with runaway debt, he has undermined domestic energy production, he has aided, compensated and encouraged unfettered illegal immigration, he has wrecked our healthcare system, he has degraded the quality of military personnel, he has degraded and reduced the size of the military, he has choked freedom and productivity with mountains of absurd regulation, he has grotesquely added to the cost of living of the consumer through regulation, he has reduced the availability of consumer credit through regulation, he has vastly raised operating costs of business through ridiculous regulation, he has fomented racial tension, he has threatened and intimidated the media, he has mocked our constitution, he has worked tirelessly to curtail the 2nd amendment right to bear arms, he has rewarded thugs and criminals and attacked law-abiding citizens, and now he is attempting to squash freedom of speech with regulation of the internet.
EVERYTHING and EVERY DECISION has been the polar opposite of what is moral and for the good of our nation. His intentions must be evil because even a complete moron gets something right every now and then, if only by chance.
As long as he occupies the White House, this nation is in grave danger. Someone must act and act soon.