The US Senate has sole authority to hold impeachment trials. If the House vote passes by a simple majority, the defendant is impeached, and the United States (Supreme Court) must preside over the Senate trial of the President.
How does one rule out other possible causes of the positive tTG blood test? We rule out other causes of elevated tTG by evaluating the other known possible causes, such as liver diseases or the concomitant presence of other autoimmune disorders. If those have been ruled out, the next likely cause is that you are not living 100% gluten-free.
Many of these things have many causes, so you need to work with your doctor to first find out what abnormality might be causing it, and then why you have that. In brief: Many causes. Elevated t-waves can have a variety of causes. Heart conditions, such as poor blood flow through coronary arteries, can cause elevation. So can abnormalities of different chemistries in your body, for example, an elevated potasium level. Many of these things have many causes, so you need to work with your doctor to first find out what abnormality might be causing it, and then why you have that.