It's unprecedented and absurd for the FBI to target a former president, especially when that former president is considering a run for office against the current administration. The search warrant will eventually have to become public, and the American people will hopefully then know the official reasons why Trump is under attack.
No one is above the law, and federal law enforcement officials have acted in a straightforward and process-oriented manner. Federal law officials believe there is evidence of a crime, so they coordinated with a judge, and they executed a search warrant. What is incredibly concerning is the GOP enflaming tensions among Trump's base, calling into question the FBI as an institution, and taking a dangerous and indefensible position that Trump is above the law.