The INSIDER daily digest -- Jan. 23, 2017

President Trump's choice to lead OMB and the implication that might have on the defense budget leads off this Monday INSIDER Daily Digest.

President Trump's choice to lead the White House Office of Management and Budget will be testifying on Capitol Hill this week:

Future of defense spending under Trump in question as Mulvaney heads to the Hill

Deficit hawk and Tea Party supporter Rep. Mick Mulvaney (R-SC), President Trump's choice to lead the powerful White House Office of Management and Budget, is slated to testify on Capitol Hill Tuesday and one of the lawmakers scheduled to question him is Sen. John McCain (R-AZ), who recently authored a plan for a massive defense spending increase that some supporters fear could be derailed by a new fiscal agenda.

Related:

McCain plan boosts Navy spending by $94 billion compared to current five-year plan

Sen. John McCain's (R-AZ) proposed blueprint to hike U.S. military spending boosts the Navy's budget by $94 billion between fiscal years 2018 and 2022 compared to the Defense Department's current forecast, including $58 billion to increase the size of the Navy and Marine Corps and buy new ships and weapons.

Document: McCain's 'Restoring American Power' white paper

More Navy news:

Navy won't accept new Freedom-variant LCS until gear software fixed

The Navy is refusing to accept a new Freedom-variant Littoral Combat Ship from contractor Lockheed Martin until a software glitch with the ship's high-speed propulsion gears is fixed, according to an official.

Navy plans for Tomahawk re-certification to include anti-ship upgrade

The Navy is preparing to put its inventory of Tomahawk missiles through a refurbishment process known as re-certification starting in fiscal year 2019, with some of the land-attack missiles expected to receive a newly developed ability to strike targets at sea during the factory restoration.

A new Congressional Research Service report is out:

CRS report outlines modernization challenges for Army ground vehicles

The Army's continued reliance on systems first fielded in the 1980s and 1990s puts the service at risk of falling behind allies and potential adversaries, according to a new report prepared for lawmakers.

Document: CRS report on foreign counterparts of Army ground combat systems

More Army news:

Army abandons planned cuts to officer corps in FY-17

Following legislative action in late 2016, the Army has halted plans to reduce the number of officers this year.

Army seeks contractor support for future warfare study

In keeping with its ongoing efforts to prepare for potential future conflicts against a near-peer competitor, the Army is asking industry to aid in its examination of "new generation warfare."

Document: Army's new generation warfare study plan