KlugerYid,
Romney directly answered your question about not needing an actual crime for impeachment and quoted the founders.
If a political opponent was a spy ? Boruch Hashem the US of America has government agencies that are well funded and tasked to protect the USA.
(Please stop talking about money. America has enough money when it needs to go to war and provide security.)
Why in the world would you send your personal lawyer?
I think you can understand the difference between the constitution allowing an impeachment for a president violating his powers without breaking a law and demanding an investigation into American Citizens that did not break the law.
The bottom line is what Romney said
“The president asked a foreign government to investigate his political rival. The president withheld vital military funds from that government to press it to do so. The president delayed funds for an American ally at war with Russian invaders. The president’s purpose was personal and political. Accordingly, the president is guilty of an appalling abuse of public trust.”