(NYLJ/Monika Kozak)

New York Attorney General Eric Schneiderman is adding staff to help engage his multi­front battle with the Trump administration.

Schneiderman has hired Howard Master, who served under recently-fired Southern District U.S. Attorney Preet Bharara as deputy chief of the office’s criminal division.

As senior enforcement counsel, Master will “lead complex affirmative investigations and litigation,” according to an announcement Monday from Schneiderman to his staff.

Master led the public corruption case against former New York State Assembly Speaker Sheldon Silver, who was convicted of honest services fraud, Hobbs Act extortion and money laundering and sentenced last year to 12 years in prison. He began working for the AG’s office earlier this month.

Schneiderman also announced that Eric Haren, chief counsel to U.S. Sen. Dianne Feinstein, D-California, the ranking member of the Senate Judiciary Committee, will begin working with the office on March 27 as special counsel and senior adviser.

Haren brings expertise in federal law and internal workings of Congress and federal agencies, Schneiderman said.

Master and Haren are joining an office of nearly 700 working attorneys that, since Election Day, has seen a spike in job applications from attorneys, spokeswoman Amy Spitalnick said.

Schneiderman has challenged President Donald Trump’s executive orders to limit immigration from Muslim-majority countries and suspend the U.S. refugee program, and has spoken out against an order to roll back the Clean Water Rule and vehicle emissions standards.

But Schneiderman’s adversarial relationship with Trump began long before Nov. 8.

In 2013, he filed a fraud suit against Trump and Trump University. Trump implied at a campaign rally last year that the suit was brought as quid pro quo for a campaign contribution from President Barack Obama. But in November, Trump agreed to a $25 million settlement.