Pam Fessler, NPR

Updated at 8:15 p.m. ET

One of the public's unanswered questions about Russia's attempts to break into election systems last year was which states were targeted. On Friday, states found out.

The Department of Homeland Security said earlier this year that it had evidence of Russian activity in 21 states, but it failed to inform individual states whether they were among those targeted. Instead, DHS authorities say they told those who had "ownership" of the systems — which in some cases were private vendors or local election offices.

Updated July 5, 6:42 p.m. ET

More than a dozen states said Friday that they would not, or could not, give a White House commission looking into voter fraud detailed voter registration data as requested.

The mass noncompliance elicited this from President Trump on Saturday:

Updated at 9 p.m. ET

Russia's military intelligence agency launched an attack days before Election Day on a U.S. company that provides election services and systems, including voter registration, according to a top-secret report posted Monday by The Intercept.

Groups that help low-income families get food assistance are alarmed by a recent drop in the number of immigrants seeking help. Some families are even canceling their food stamps and other government benefits, for fear that receiving them will affect their immigration status or lead to deportation. Many of the concerns appear to be unfounded but have been fueled by the Trump administration's tough stance on immigration.

Outgoing Department of Housing and Urban Development Secretary Julian Castro's office overlooks a stretch of the Washington, D.C., waterfront where several high-rent apartment buildings are being built, in a city where affordable housing is in short supply and homelessness is a big problem.

These are some of the same issues his successor will have to deal with as head of an agency that provides housing aid to 10 million low-income families.

Former first lady Nancy Reagan died Sunday at her home in Los Angeles of congestive heart failure, according to the Reagan Foundation. She was 94.

President Obama has established a new bipartisan commission on election administration, something he promised to do in his Feb. 12 State of the Union address. He signed an executive order Thursday making it official.

First, there was the post-Thanksgiving sales spectacle Black Friday and then the online version, Cyber Monday. Now, charitable groups want to start a new holiday tradition — it's called Giving Tuesday and the first one is tomorrow.

It may seem a little surprising that no one came up with the idea before of designating a specific day to help launch the holiday charitable giving season.

Dozens of anonymous billboards have popped up in urban areas in the crucial battleground states of Ohio and Wisconsin. The signs note that voter fraud is a felony, punishable by up to 3 1/2 years in prison and a $10,000 fine.

Civil rights groups and Democrats complain that the billboards are meant to intimidate voters.

Two weeks from Tuesday, Iowa voters will head out to almost 1,800 caucus sites to help select a Republican presidential nominee. It could be cold. It could also be snowing. And the campaigns know they'll have to work hard to make sure their supporters show up. Those get-out-the-vote efforts could make all the difference in a race that now appears to be up for grabs.