Here let me word it so that your mind can make the connection.
None of this matters. He's the President and he CONSTITUTIONALLY directs foreign policy. It is not the place of Congress to direct foreign policy anymore than it's his to make new laws.
It is the presidents job to conduct foreign policy...with the advise and consent of the Senate. they do not have to be silent and he can make no treaty nor appoint an ambassador without their consent.
The House, while having no direct say in foreign policy except for the power to declare war, still can play an important part. Our fore fathers understood that U.S. foreign policy could be influenced by what George Washington referred to as "enlightened" public opinion.
The House, with the most direct contact with the public has a duty to keep the public "enlightened" and to share the opinions of the public with the president. That becomes especially important with a liar and islamic sympathizer for a president.
Furthemore, with their power of the purse, they can limit the presidents ability to make agreements not in the best interest of the nation as a whole.
It is in the spirit of enlightenment that they have invited a knowledgeble voice to speak to them.
Good for them.