No, it is not illegal to transfer funds to run for one office. It is perfectly normal for a candidate running for office to wait and see how well he’s able to round up supporters before announcing. EVERY senator or governor who ever ran for president did so. And yes, Trump waited longer than most candidates in 2016, waiting until mid-June.
And cite regulations, not because you said so.
Except Trump announced in mid-June 2015.
Don’t try to tell that to these political illiterates.
They run on pure emotion.
Not one reasonable person in the whole lot of Trump idolators.