Former CIA director John Brennan, who has been critical of Mr Trump, and billionaire philanthropist George Soros have also been targeted.
The only common thread between the people who have received devices is that they are prominent figures - many current or former Democratic elected officials - who have publicly clashed with Trump.
All the parcels listed Rep.
The FBI has said that at least five of the packages bore a return address for the Florida office of USA representative Debbie Wasserman Schultz, who formerly chaired the Democratic National Committee.
The arrest came on the same day law enforcement found three more devices - in Florida, New York and California - and capped off an increasingly tense five-day stretch in which at least one explosive device was found each day, putting officials and potential targets on high alert.
The packages were "clearly an effort to terrorize people politically, to choose people for political purposes and attack them due to their beliefs", New York City Mayor Bill de Blasio said.
Even as Trump touted civility at Wednesday night's rally, some of his most influential supporters were suggesting - without evidence - that Democrats were involved in a "false flag" operation created to garner sympathy. That means FBI investigators can "look for patterns such as the device, the technical expertise, the method of mailing, a whole host of great, rich forensic evidence that can be gathered".
RB Leipzig 2 Celtic 0: Poor defending costs Bhoys
So for us, the standard here is winning so we are there to win and to do it in a way that entertains our supporters. Yet Rodgers insisted afterwards that Celtic are "still in with a great chance" of reaching the knockout stage.
The explosive devices were packed in envelopes with bubble-wrap interiors bearing six stamps and the return address of Florida Rep.
Similar packages addressed to Hillary Clinton and former President Barack Obama on their way to Chappaqua, New York, where Clinton lives with former President Bill Clinton and to Washington, where Obama lives with his wife, Michelle.
All of the bomber's targets have clashed sharply with Trump at different times, and the spate of risky packages intensified the already full-throated political fights two weeks before congressional elections.
Neither Clinton nor Obama received the packages, and neither was at risk of receiving them because of screening procedures, the Secret Service said. "Mainstream Media must clean up its act, FAST!"
Police said today that they have intercepted a suspicious package addressed to former USA vice president Joe Biden. Holder's package ended up rerouted and delivered to the Wasserman Schultz return address.
Wray declined to say whether the devices could have detonated, saying that investigators are "still trying to determine whether or not they were functional".
The powder was tested and determined to have been harmless, according to a law enforcement official. Reports have suggested that this is also due to a suspicious package.
China dismisses claim it eavesdropped on Trump's iPhone calls
Also, Trump uses the second special iPhone with Twitter and social apps, which works only on a secured Wi-Fi router. First, the New York Timesshould know that such reports provide more evidence that that the NYT is making fake news.
The package addressed to the White House was intercepted at Joint Base Bolling, a U.S. military facility.The source of the packages is not yet known, nor is a link proven.
One of the packages addressed to Ms Waters was discovered at a congressional mail sorting facility in Maryland.
What is the recent history of violence against USA politicians?
Trump said Wednesday as he kicked off a rally in Wisconsin: "We want all sides to come together in peace and harmony". A law enforcement official says a suspicious package addressed to former Vice President Joe Biden was found in New Castle County, Del.
"I'm not saying - and I don't believe - that the president is doing this on objective, but he is doing it for his own political imperatives, especially at a time of upcoming midterm elections", Bokhari said in an interview.
President Trump's reaction via tweet this morning only added fuel to the fire he has started.
We continue our call for a massive turnout of voters on November 6 to remove from office all the Republican enablers of Trump and everything he stands for.
Russia’s Putin, Saudi king discuss Khashoggi case in phone call
As the investigation into Khashoggi's alleged murder has developed, the US government has taken some action. On Thursday, the story changed, and Saudi state media acknowledged that Khashoggi's death was premeditated.
An amateur body builder and former stripper who once spent time on probation for a bomb threat charge, Sayoc first registered as a Republican voter just ahead of the March 2016 Republican primary and quickly identified himself as a proud Trump supporter, tweeting and posting on Facebook videos that appear to show him at Trump rallies.