According to the voter registration report, Republicans still hold the district at 37 percent, while Democrats are at 31 percent. Issa made a fortune from this business and he even provided the voice of the Viper auto alarms that would warn people they were standing too close the vehicle: "Protected by Viper".
"If we're only sending ideological purists and strict partisans to Washington, we're stopping progress before it even starts", Thomas Donohue, the chamber's president, said in his annual address on American business in Washington.
Just last month, Issa was one of only a few Republicans who voted against the party's tax plan, doing so, he said, out of concern that the bill's changes to popular individual tax deductions would hurt his district.
Vozzella notes that some Democratic voters had also sued over a second disputed election, which involved "a 73-vote squeaker in which 147 voters mistakenly received the wrong ballots".
"Secretary Clinton won this district by a huge margin in 2016, and the cohort of strong Democratic challengers, unprecedented grassroots activism, and historic investment by the DCCC in Southern California means we are in a strong position to elect a Democrat to the 49th District this fall".
Utah Sen. Orrin Hatch, a Republican, is retiring as well. The others are Ileana Ros-Lehtinen of Florida and Dave Reichert of Washington, along with Issa. "Clinton won his district by 9 points; He won by 15 points, was still considered lean R by ratings folks".
"But keep in mind, the filing deadlines have not passed in those states", Wasserman said.
Since Wednesday's announcement, three Republicans have declared their intent to run for the 49th. He also called Royce's announcement "a shocker".
Five Democrats are already running for the seat that have raised at least $100,000 - including heavy-hitting self-funders Andy Thorburn, his campaign $2 million, Gil Cisneros, another self-funder, and Mai-Khanh Tran, a pediatrician and former refugee from Vietnam who has the backing of EMILY's List.
Still, Democrats are highly motivated.
The threat to Donald Trump's presidency is not necessarily just a legal or literary one (Fire and Fury: great book, tremendous page turner, you gotta believe me).
"This week, we got our first wins with Darell Issa and Ed Royce stepping down rather than face crushing defeat in November", Steyer said in a statement. Progressives are energized like never before - and today makes it more than obvious: "Trump and the GOP are scared".