This is the claim of Joseph Smith, that he was a modern prophet. When he was 14 years old, he wanted to join a church but he didn't know which to join. After reading a verse in the book of James in the Bible which told him to ask God, he went into the woods and prayed. In response he had a vision of God and Jesus Christ:

I saw two Personages, whose brightness and glory defy all description, standing above me in the air. One of them spake unto me, calling me by name and said, pointing to the other�This is My Beloved Son. Hear Him!



My object in going to inquire of the Lord was to know which of all the sects was right, that I might know which to join. No sooner, therefore, did I get possession of myself, so as to be able to speak, than I asked the Personages who stood above me in the light, which of all the sects was right (for at this time it had never entered into my heart that all were wrong)�and which I should join.


I was answered that I must join none of them, for they were all wrong; and the Personage who addressed me said that all their creeds were an abomination in his sight; that those professors were all ccorrupt; that: �they draw near to me with their lips, but their hearts are far from me, they teach for doctrines the commandments of men, having a form of godliness, but they deny the power thereof.�

For more up to date evidence, read this. I am wondering why Catholics aren't leaving the church in droves, but maybe searching for truth is something you're taught not to do if you're Catholic.