Among those offended by the alleged wrong doing, they "might" feel that a government leader must not have a blemish, that is huge in their mind, on their/it's record.
It falls on certain Republican leaders who have not fulfilled their obligation of a check on a popular president (at least within the party, so far), McConnell, former speaker Ryan, Graham, Blunt, Thune, McCarthy, Scalise and Greg Pence (the VP's brother). Many of these are in very powerful...