New Rand Paul book to debut in 2015

(CNN) - In another sign that Sen. Rand Paul is taking steps toward a presidential campaign, the Kentucky Republican will come out with a new book early next year.

That's about the same time frame Paul has said he'll make a decision about a White House bid.

Paul told Louisville's Courier-Journal, which first reported the story, that the timing was "just coincidence, probably just coincidence."

The senator did not share the book title but said the subtitle could possibly be "Beyond Partisanship."

"Beyond the left-right paradigm kind of thing," he continued, according to the Courier-Journal. The libertarian-leaning senator added the book will focus on policy and the "uniqueness" of his approach to a lot of issues.

He has authored two other titles, "The Tea Party Goes to Washington" (2011) and "Government Bullies: How Everyday Americans Are Being Harassed, Abused, and Imprisoned by the Feds" (2012).

Last year he was accused of plagiarism in some of his speeches and writings, including in "Government Bullies." Paul ultimately took responsibility, saying his office had been "sloppy" and pledged to add footnotes to all of his future material.