Adam Schiff nails it: Nobody is above the law. Not this President. Not any president.

[LastLiberal in PalmSprings]

32. The Grammar Nazi strikes again!

From someone who majored in journalism:

1. In American English, periods and commas always belong inside quotation marks, e.g., between the "dumb" and the "bright." (While it isn't firmly established whether a comma should follow e.g. and i.e., both the Chicago Manual of Style and the AP Stylebook say that both abbreviations are followed by a comma.)

2. A question mark or exclamation point goes inside the quotation marks if it refers to the quoted statement: He asked, "What's going on?" Place the punctuation outside the closing quotation marks if the punctuation applies to the whole sentence: Did Bob say,"I want to see 'The Avengers'"?

3. An ellipsis (...) is used to indicate omitted words. The em dash can be used in place of a colon when you want to emphasize the conclusion of your sentence. The only time you would put an em dash at the end of a sentence is to show someone’s words are being cut off for whatever reason. “’We can’t keep this up any—’ Kyle’s voice caught as he noticed his boss turn the corner.”

4. "grabing" is not a word, and gets picked up by the spell check.

5. Sometimes a word passes through the spell checker but is the wrong word, e.g., "us" for "is."

6. If it is used in a the middle of a sentence, etc. is set off by commas; if used at the end the word's period is sufficient.

source: Grammar Girl and Daily Writing Tips.

I doubt Trump followers even know who Rep. Schiff is, let alone care about his lexicon and use of grammar.

When you go to law school, as I did, the way you express yourself changes. You find yourself expanding your vocabulary, but not always for the better. For example, I never used "notwithstanding" before law school. My favorite story concerns an attorney husband arguing with his lawyer wife. "You don't have standing to bring that up!" said the husband.

I have a friend who is working on her doctorate. She said her instructors told her that at some point a PhD can't hold a conversation with a bowler.

For a discussion about why good grammar is important, see Daily Grammar's discussion of the topic.

Having said all that, I agree that Schiff could have expressed himself differently. Since the Tweet is already out there, however, the issue is moot.