If you want to end this gridlock mess in Washington,the only way to do it is send our candidate to the White House and vote for our people in both Houses of Congress.这里is send 改成is to send 是否可以

If you want to end this gridlock mess in Washington,the only way to do it is send our candidate to the White House and vote for our people in both Houses of Congress.这里is send 改成is to send 是否可以
If you want to end this gridlock mess in Washington,the only way to do it is send our candidate to the White House and vote for our people in both Houses of Congress.
这里is send 改成is to send 是否可以

If you want to end this gridlock mess in Washington,the only way to do it is send our candidate to the White House and vote for our people in both Houses of Congress.这里is send 改成is to send 是否可以
可以.正式场合应该是to send.

我觉得应该改成to send，因为send之后的部分是动词短语成分，不可能直接作为is 的表语。