Biden preparing to block U.S. Steel sale to Japanese company
It appears that the situation you’re referring to involves former President Donald Trump engaging with the established Republican party in a contentious Senate primary election. This could mean that Trump is endorsing or otherwise supporting a candidate who is not the choice of the party’s traditional power structure. He could be doing this for various reasons such as supporting a more conservative candidate or simply causing friction within the party. If you need more specific details or updates on current events, please give more detailed information.