That’s not how it works.
If you have an issue, gripe, malice, hate, whatever the situation with your brother, you cannot take communion until you seek out and settle things and forgiving him. Your demonstration of being forgiving is a demonstration of God’s forgiveness of sins. Has 45 forgiven those who have so-called wronged him? He still lashed out and lashes out at the press, former employees who turned on him, his former friends the Clinton’s, former president Obama, senator McCain, politicians, world leaders, and any and everybody who speaks out against him and his policies. Let’s be truthful, if he is taking communion without forgiving any of these persons then his communion is meaningless, it’s just an act of nothing.
FTR…communion does not save you. Confessing your sins, asking God for forgiveness(not through communion) and accepting Yeshua as Lord and Savior does.