Passage: The Senate also has a role in ratifying treaties. The Constitution provides that the president may only "make Treaties, provided two thirds of the senators present concur" in order to benefit from the Senate's advice and consent and give each state an equal vote in the process. However, not all international agreements are considered treaties under US domestic law, even if they are considered treaties under international law. Congress has passed laws authorizing the president to conclude executive agreements without action by the Senate. Similarly, the president may make congressional-executive agreements with the approval of a simple majority in each House of Congress, rather than a two-thirds majority in the Senate. Neither executive agreements nor congressional-executive agreements are mentioned in the Constitution, leading some scholars such as Laurence Tribe and John Yoo to suggest that they unconstitutionally circumvent the treaty-ratification process. However, courts have upheld the validity of such agreements.The Constitution empowers the House of Representatives to impeach federal officials for "Treason, Bribery, or other high Crimes and Misdemeanors" and empowers the Senate to try such impeachments. If the sitting president of the United States is being tried, the chief justice of the United States presides over the trial. During an impeachment trial, senators are constitutionally required to sit on oath or affirmation. Conviction requires a two-thirds majority of the senators present. A convicted official is automatically removed from office; in addition, the Senate may stipulate that the defendant be banned from holding office. No further punishment is permitted during the impeachment proceedings; however, the party may face criminal penalties in a normal court of law.

Question: What is needed for the president to make congressional=executive agreements?
a simple majority in each House of Congress