SANTA ANA, Calif. (Reuters) -Michael Avenatti, the twice-convicted lawyer known for taking on then-U.S. President Donald Trump, on Thursday pleaded guilty to five additional criminal charges, including defrauding clients and obstructing the Internal Revenue Service. U.S. District Judge James Selna in Santa Ana, California, accepted Avenatti’s plea to four counts of wire fraud and one obstruction count. Avenatti has been defending against 36 criminal charges, including lying to a bankruptcy court and defrauding a bank. The charges he admitted to carry a maximum combined prison term of 83 years,…