The bill, which comes amid speculation that Warren could run for president in 2020, would also create "conflict-free investment opportunities for federal officials with new investment accounts."
Collins' ties to an Australian biotechnology company have lodged insider trading charges against him and his son, and torpedoed his re-election campaign in Congress.
An indictment alleges that the defendants' insider trading allowed them to avoid "over $768,000 in losses that they would have otherwise incurred" had they sold their stock after the information was made public.
"All of these incidents that have been a blur for us in terms of the news cycle are going to turn into inquiries," said one expert in government investigations.
The government spent at least $341,000 on travel by Price, including charter flights, according to an agency watchdog.
Even though EPA chief Scott Pruitt has resigned, the root cause of the scandal-ridden cabinet secretary's departure is alive and well in the Oval Office.
Tom Price used to say that the mandate drove up health-care costs. He has changed his tune.
Lawmakers aren't likely to tackle the Affordable Care Act until after midterm elections, former Health and Human Services Secretary Tom Price says.
EPA Administrator Scott Pruitt is one of several top Trump administration officials to catch flak for taking pricey flights instead of flying coach.
Opioid-dependent people are "individuals who are getting trapped in a cycle of addiction," HHS' Alex Azar argues.
As Gary Cohn flees the White House, financial markets are discovering that elections have more than one consequence.
Most of the officials who have faced scrutiny had been the target of complaints about their travel practices.
The report says that a Veterans Affairs worker "effectively acted as a personal travel concierge" to David Shulkin and his wife.
Azar is replacing Dr. Tom Price, who resigned amid controversy last fall over his use of private pricey charter flights for work.
President Donald Trump has repeatedly condemned high drug prices but hasn't done much to lower them one year in office.
During a discussion about Obamacare with House Speaker Paul Ryan, Trump kept trying to talk about golf, according to a new book.
Azar had served until January as head of Eli Lilly's US division, and previously was general counsel of Health and Human Services.
Trump has bad-mouthed Obamacare for years, but has been unable to win its repeal and replacement from Congress.
CNBC's Kayla Tausche reports that Don Wright will be Tom Price's temporary replacement for HHS Secretary after Price has resigned. CNBC Senior Contributor Larry Kudlow weighs in.
CNBC's Kayla Tausche reports on a White House statement announcing Tom Price is out as Health and Human Service Secretary for using a government private jet for personal use.