The federal investigation into President Joe Biden's son, Hunter Biden, over his tax affairs has intensified in recent weeks, sources familiar with the matter tell ABC News.
An increasing number of witnesses have appeared before a grand jury impaneled in Wilmington, Delaware, in recent months, the sources said, and have been asked about payments Hunter Biden received while serving on the board of directors of Ukrainian natural gas company Burisma, in addition to other questions about how Biden paid off tax obligations in recent years.
The U.S. Attorney's Office for Delaware, which has been leading the investigation, is expected to hear from more witnesses in the coming weeks, sources told ABC News.
Sources say that prosecutors have not made a decision yet on whether criminal charges against Biden are warranted, and that there is debate about whether Biden's admitted
past drug abuse could serve to undermine a criminal case over his financial decision-making.
abcnews.go.com
