Here's the short explanation.

A filibuster is a Senate rule which effectively allows the minority party in the Senate to require a super majority of 60 votes to pass legislation instead of a simple majority of 51 votes. Since the senate is typically split very closely between the two parties, it forces each party to convince at least a handful of Senators from the opposing party to vote for their legislation, or it will not pass.

Without the filibuster rule, whichever party controlled the senate could completely control everything happening in the senate without opposition from the minority party.

Here's a technical explanation of the filibuster. It's an interesting "parliamentary" feature of our democracy dating back to 1917.

https://www.brennancenter.org/our-work/research-reports/filibuster-explained

As of today, the Arizona Supreme Court reinstated a near-total abortion ban from 1864. The law carries a sentence of two to five years in prison upon conviction. So far, attempts to stop the ban have been blocked.
The ruling puts the issue of abortion front and center in this year’s elections, a key to decide the presidency and partisan control of the U.S. Senate.
Democrats immediately blamed Trump because he appointed the justices who formed the majority that ended the national right to abortion.
Biden is emphasizing efforts to restore abortion rights, while Trump has avoided endorsing a national abortion ban.
In a statement today, Trump said that Arizona went "too far" with this ruling, but nonetheless insists that abortion is a subject that should be left to state governments.

The new near-total abortion ban instated by the AZ Supreme Court, and abortion in general, is a very controversial topic among people of both parties. Chaos has erupted since the ban was announced, and will continue as many on both sides call for a repeal of this law. This also may lead to Republican losses for Trump.

All these Politicians  want to see their  legacy on paper.  Biden is no different in writing his book with a ghost writer and getting paid $8.0 million.  Did he have any of his writings, detail locations of Nuclear Submarine.  His Predecessor did !

Foni Willis, Fulton  County Prosecutor, should stand down from her involvement in the prosecution of the Trump in his Election Fraud case. Any questioned credibility of a prosecutor, judge or juror, Clouds the investigation and conviction.  Will lead to ongoing litigation.

Judge in Georgia dismissed 3 counts related to indictment of Trump for election fraud.

Reason for dismissal.  Judge found Not enough information for Trumps defense. 
 
Prosecutors were advised, to add additional information. Changeable but want more clarification

Biden shared classified documents with the ghost writer of his book, which he was paid $8,000,000 to write.

Special Council investigation conducted by Jack Smith chose to prosecute Trump for mishandling classified documents. 
 
Special Counsel investigation by Robert Her chose not to prosecute Biden for mishandling classified documents.

Transcripts of the Her interview show that Biden has serious cognitive issues in some instances, and that he cognitively sharp in other instances. But Her's testimony confirms that he in fact believes Biden has problems remembering things you should not forget, like what years he serviced as VP and the date of his son's death.

Biden lied to the public in an important press conference concerning his age issue.  He forcefully scolded Her for probing him about the date of his sons death saying  “How the hell dare he raise that, frankly when I was asked the question [about the date of his sons death]  I thought to myself, it was none of their dam business”.   Transcripts of the actual interview show that Her never asked this question. Biden lied about the interview not realizing the actual transcripts would be released to the public.

Both Biden and Trump had classified documents in their personal possession that they should not have possessed. Big difference is Biden cooperated with the classified documents investigation while Trump was not cooperative.

Robert Her is a credible man who completed an honest investigation.  His findings are not politically motivated despite what both sides are claiming. He is not acting in a partisan manner against Biden or for Biden.